Marion County, OR: risk-assessment baseline packet, release 2026-10

Summary

Plan status as of 2026-09-30: Approved, expires 2028-04-05. Plan: Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879), approved 2023-04-06.

Since the plan was approved on 2023-04-06: 1 new hazard declaration (1 incident): FM-5483-OR (Liberty Fire).

NOAA Storm Events records since that date: 30 records (data through 2026-06-30).

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Earthquake ($122,193,090 a year), Inland Flooding ($37,461,551) and Heat Wave ($6,589,356).

Repetitive-loss flood properties now: FMA RL 0, SRL 3 (44 CFR 77.2); any definition: 16.

The tables that follow are organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B (B1-a to B2-c); each heading says which item its tables support.

Terms used

EAL:: expected annual loss: FEMA's modeled average yearly loss from a hazard.
NRI:: FEMA's National Risk Index (version 1.20, December 2025).
NFIP:: National Flood Insurance Program.
RL, SRL:: repetitive loss and severe repetitive loss: flood-insured properties with repeated claims (definitions in B2-c).
FMA, HMGP:: Flood Mitigation Assistance and Hazard Mitigation Grant Program, FEMA mitigation grants.
PA:: FEMA Public Assistance: disaster aid to governments and some nonprofits.
Zone-level:: NOAA logged the event for a National Weather Service forecast zone, which may include parts of neighboring counties.
County-coded:: NOAA logged the event to this county.
FIPS:: the federal code for a place; 41047 is this area.
D0 to D4:: U.S. Drought Monitor categories, from abnormally dry (D0) to exceptional drought (D4).
F/EF, EFU:: Fujita and Enhanced Fujita tornado ratings; EFU is an unrated tornado.
kt, CONUS:: knots (1 kt is about 1.15 mph); the contiguous United States.
CFR:: Code of Federal Regulations.
A4-a, E1-a:: other items of FEMA's Local Mitigation Plan Review Tool (sources, and changes since the last plan).
Dollars:: nominal (as reported, labeled with the year), not adjusted for inflation.

Plan clock

Status:: Approved, expires 2028-04-05
Plan:: Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)
Approved:: 2023-04-06
Days to expiry:: 553

What changed since your last plan (approved 2023-04-06)

New federal declarations:: 1 new hazard declaration (1 incident): FM-5483-OR (Liberty Fire)
Storm Events records since approval:: 30 records (data through 2026-06-30)
Repetitive loss now:: FMA RL 0, SRL 3 (44 CFR 77.2); any definition: 16
Repeat-flood change:: this release sets the baseline count.

Sources: 1, 2, 4, 6 (numbered list at the end)

Plan status for every jurisdiction listed in this county: 18 rows, in the section "Plan clock: Plan status for every jurisdiction listed in this county" on the following pages.

State plan status and tribal plans in this state: see the state page.

Plan clock

Plan status for every jurisdiction listed in this county

Source: 1

Jurisdiction	Type	Status	Plan	Approved	Expires	Days to expirynegative = days since expiry	Notes
Marion County	County	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553
Aumsville city	City	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553	this jurisdiction approved 2023-05-09
Aurora city	City	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553	this jurisdiction approved 2025-04-22
Detroit city	City	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553	this jurisdiction approved 2025-04-22
Gervais city	City	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553	this jurisdiction approved 2023-05-09
Hubbard city	City	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553	this jurisdiction approved 2023-05-09
Jefferson city	City	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553	this jurisdiction approved 2023-05-09
Keizer city	City	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553	this jurisdiction approved 2025-04-22
Mount Angel city	City	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553	this jurisdiction approved 2025-04-22
Salem city	City	Approved, expires 2028-12-04	City of Salem Natural Hazards Mitigation Plan (FEMA plan 109257)	2023-12-05	2028-12-04	796
Scotts Mills city	City	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553	this jurisdiction approved 2025-04-22
Stayton city	City	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553	this jurisdiction approved 2025-04-22
Sublimity city	City	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553	this jurisdiction approved 2025-04-22
Turner city	City	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553	this jurisdiction approved 2024-02-09
Woodburn city	City	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553
Keizer Fire District	Fire/EMS District	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553
Mt. Angel Fire District	Fire/EMS District	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553	this jurisdiction approved 2024-02-09
Woodbrun Rural Fire Protection District	Fire/EMS District	Approved, expires 2028-04-05	Marion County Multi-jurisdictional All-Hazards Mitigation Plan (FEMA plan 108879)	2023-04-06	2028-04-05	553	this jurisdiction approved 2025-04-22

Plan 108879 covers 2 other participants: Idanha city (Linn County); Mill City city (Linn County).

Supports FEMA checklist item B1-a: hazard identification

Hazards NRI does not cover (local data needed)

dam failure (incl. upstream dams)
levee failure
flash flood as its own subtype
ice jams
debris flows
erosion (riverine and coastal)
land subsidence and sinkholes
expansive soils

The 18 National Risk Index hazards, ranked by expected annual loss (EAL)

Sources: 5, 6

Rank by EAL	Hazard	NRI risk rating	EAL rating	EAL buildingsmodeled dollars per year	EAL agriculturemodeled dollars per year	Cost of expected deaths and injuriesFEMA's dollar value per year, not property damage	EAL total (see note)modeled dollars per year	Storm Events records, 1996 to 2026-06-30count	Why this hazard can be left outNRI Not Applicable, no declaration and no Storm Events record since 1996	Storm Events coverage note
1	Earthquake	Relatively High	Relatively High	$68,158,368	n/a	$54,034,722	$122,193,090			Storm Events does not record earthquakes.
2	Inland Flooding	Relatively Moderate	Relatively Moderate	$37,316,307	$19,074	$126,171	$37,461,551	34
3	Heat Wave	Relatively Moderate	Relatively Moderate	$1,863	$178,423	$6,409,070	$6,589,356	18
4	Strong Wind	Relatively High	Relatively High	$1,556,611	$253	$300,866	$1,857,729	69		Includes 43 High Wind and 17 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
5	Lightning	Relatively High	Relatively High	$26,044	n/a	$960,191	$986,235	3
6	Cold Wave	Relatively Low	Relatively Low	$1,750	$610	$929,820	$932,180	8		Includes 3 Frost/Freeze records (outside NRI's Cold Wave definition; counted in this table and in B1-d, not in the B1-e descriptor).
7	Tornado	Very Low	Very Low	$35,185	$1,308	$231,692	$268,184	9
8	Ice Storm	Relatively Moderate	Relatively Moderate	$106,516	n/a	$138,222	$244,738	9
9	Winter Weather	Relatively Moderate	Relatively Moderate	$8,720	$8,752	$162,359	$179,831	300		Includes 1 Sleet record (outside NRI's Winter Weather definition).
10	Hail	Relatively Low	Relatively Low	$126,765	$23,799	$21,498	$172,062	5
11	Volcanic Activity	Relatively Moderate	Relatively Low	$28,661	n/a	$55,055	$83,716	0		No recorded events in Storm Events since 1996 (data through 2026-06-30).
12	Wildfire	Very Low	Very Low	$71,010	$16	$4,091	$75,117	25
13	Landslide	Relatively Low	Relatively Low	$7,581	n/a	$14,993	$22,574	4
14	Drought	Very Low	Very Low	n/a	$1,122	n/a	$1,122	0		No recorded events in Storm Events since 1996 (data through 2026-06-30).
15	Avalanche	Very Low	Very Low	$2	n/a	$120	$122	1
	Hurricane	Not Applicable	Not Applicable					0	NRI rates hurricane Not Applicable for this county, and no counted federal declaration for this county names it (EM-3228-OR names it but is not counted as a local occurrence; see B1-d).	No recorded events in Storm Events since 1996 (data through 2026-06-30).

Total = buildings + agriculture + population equivalence; FEMA values each expected death (or 10 injuries) at $13.7 million (2024 dollars).

NRI risk rating combines expected annual loss with social vulnerability and community resilience; EAL rating rates expected annual loss alone. Both compare this county with all U.S. counties.

Local data needed: state and local volcanic activity records (Storm Events records this hazard only in part).

Not applicable to this county per NRI, with no federal declaration and no Storm Events record since 1996: coastal flooding and tsunami. That is the evidence for leaving them out of the plan.

The state hazard mitigation plan also lists hazards for this county; FEMA asks the plan to explain any hazard it leaves out.

Supports FEMA checklist item B1-b: hazard location

Affects the whole county (national data give no location within it): Cold Wave, Drought, Hail, Heat Wave, Ice Storm, Lightning, Strong Wind and Winter Weather.

Inland Flooding: The FEMA Flood Insurance Rate Map (FIRM) is the required location source for flooding. See the FEMA Flood Map Service Center (https://msc.fema.gov) for this county.

Hazards that vary within the county: highest-rated census tracts

Source: 5

Hazard	Highest-rated census tractsNRI risk rating, score 0 to 100
Avalanche	tract 107.02 (Very Low, 18.5); tract 106 (Very Low, 18.2); tract 105.01 (Very Low, 14.7)
Earthquake	tract 2 (Very High, 100.0); tract 10 (Very High, 99.6); tract 4 (Very High, 99.5)
Hurricane	no tract has a National Risk Index rating for this hazard
Landslide	tract 106 (Relatively Moderate, 98.3); tract 105.01 (Relatively Moderate, 96.5); tract 28 (Relatively Low, 89.4)
Tornado	tract 103.04 (Very Low, 18.9); tract 107.01 (Very Low, 18.6); tract 18.02 (Very Low, 18.2)
Volcanic Activity	tract 107.01 (Relatively Moderate, 98.9); tract 106 (Relatively Moderate, 98.3); tract 107.02 (Relatively Low, 97.8)
Wildfire	tract 105.01 (Relatively Moderate, 89.9); tract 106 (Relatively Low, 81.2); tract 105.02 (Relatively Low, 78.6)

Up to 3 census tracts per hazard, highest National Risk Index rating first, then highest score; a tract number is the Census tract number (for example 107.02 is Census Tract 107.02). FEMA's Resilience Analysis and Planning Tool maps the National Risk Index for every tract: https://www.fema.gov/emergency-managers/practitioners/resilience-analysis-and-planning-tool

Supports FEMA checklist item B1-c: hazard extent

Extent: scale, observed range and worst recorded event per hazard

Sources: 6, 7

Hazard	Scale	Recordscount and years	Observed range	Worst recorded event	Most damaging (when different)	How it applies to jurisdictions	Note
Avalanche	none (count and damage only)	1 record, 2008 (1 zone-level)		No damage reported in 1 record.		Countywide (zone-level records).	Physical measure: in event narratives only (local data needed).
Cold/Wind Chill, Extreme Cold/Wind Chill	wind chill	5 records, 1998 to 2023 (5 zone-level)	1 day to 7 days (median 2 days); 5 with a recorded value	7 consecutive days, 1998-12-18 to 1998-12-24, zone-level		Countywide (zone-level records).	Wind chill: in event narratives only (local data needed).
Frost/Freeze (outside NRI's Cold Wave definition)	crop damage	3 records, 2014 to 2024 (3 zone-level)		No crop damage reported in 3 records.		Countywide (zone-level records).	Temperature: in event narratives only (local data needed).
Drought	U.S. Drought Monitor scale (D0 to D4)	0					Storm Events enters a drought at D2 or worse east of the Rockies and D3 or worse from the Rockies west (NWS Instruction 10-1605); NRI drought counts D3 and D4 only.
Earthquake	Modified Mercalli (local data)	0					Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail	hail size (inches)	6 records, 1993 to 2023 (1 zone-level)	0.5 in to 1.75 in (median 1 in); 5 with a recorded value	1.75 in hail, 1993-05-19	Hail, 2007-05-03, property not reported; $5,000 crops (2007 dollars)	Event records naming jurisdictions in the plan: Keizer city (1 record), Salem city (1 record), Scotts Mills city (1 record), Sublimity city (1 record). Zone-level records (1) apply countywide.
Excessive Heat, Heat	heat index (in event narratives)	18 records, 2006 to 2022 (18 zone-level)	1 day to 5 days (median 3 days); 17 with a recorded value	5 consecutive days, 2015-07-01 to 2015-07-05, zone-level		Countywide (zone-level records).	Heat index: in event narratives only (local data needed).
Hurricane, Tropical Storm, Tropical Depression	Saffir-Simpson	0					Storm Events files every zone of a storm's episode under the storm's type; flooding from the storm is filed as Flood or Flash Flood records.
Ice Storm	Sperry-Piltz ice scale (local data)	9 records, 1996 to 2024 (9 zone-level)		Ice Storm, 2021-02-11, $10,000,000 property; $0 crops (2021 dollars); NWS zone ORZ007		Countywide (zone-level records).	Ice thickness: in event narratives only (local data needed).
Flash Flood, Flood, Lakeshore Flood	damage and flood days (flood depth: FIRM)	34 records, 1996 to 2025 (11 zone-level)		Flood, 2012-01-20, $1,000,000 property; $0 crops (2012 dollars)		Event records naming jurisdictions in the plan: Aurora city (12 records), Jefferson city (7 records), Turner city (1 record). Zone-level records (11) apply countywide.	Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage is often $0 or blank for floods, major ones included; FEMA Public Assistance by declaration (B1-d) shows which floods cost the most.
Debris Flow	none (count and damage only)	4 records, 1996 to 2012 (4 zone-level)		Debris Flow, 2009-01-02, $500,000 property; $0 crops (2009 dollars); NWS zone ORZ010		Countywide (zone-level records).	Physical measure: in event narratives only (local data needed).
Lightning	annualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)	3 records, 1998 to 2014		Lightning, 2014-05-17, $75,000 property; $0 crops (2014 dollars)		Event records naming jurisdictions in the plan: Woodburn city (2 records), Aurora city (1 record).	Storm Events lists lightning with damage or casualties; physical measure in event narratives only (local data needed).
High Wind and Strong Wind (outside NRI's Strong Wind definition)	wind speed (kt and mph)	60 records, 1996 to 2023 (60 zone-level)	25 kt (29 mph) to 104 kt (120 mph) (median 52 kt (60 mph)); 59 with a recorded value	104 kt (120 mph), measurement type not recorded, High Wind, 1999-02-05; Storm Events area SE MULTNOMAH/C & S HOOD RIVER/E CLAKAMAS/E MARION/E LINN/E LANE (legacy zone code ORZ011)	High Wind, 2020-09-07, $2,000,000,000 property; $0 crops, reported for the zone (2020 dollars)	Countywide (zone-level records).
Thunderstorm Wind	wind speed (kt and mph)	10 records, 1990 to 2020	35 kt (40 mph) to 70 kt (81 mph) (median 47.5 kt (55 mph)); 6 with a recorded value	70 kt (81 mph) estimated gust, Thunderstorm Wind, 2009-06-04; same speed and measurement basis also recorded on 2005-06-19	Thunderstorm Wind, 1996-04-11, $20,000 property; crops not reported (1996 dollars)	Event records naming jurisdictions in the plan: Salem city (2 records), Jefferson city (1 record), Mount Angel city (1 record), Woodburn city (1 record).
Tornado	Enhanced Fujita (Fujita before Feb 2007)	11 records, 1960 to 2022	F/EF0 to F/EF2 (median F/EF0); 11 with a recorded value	EF2 tornado, 2010-12-14, 5 mi within this county, 150 yd wide, $1,200,000 property; $0 crops (2010 dollars), 2 direct injuries		Event records naming jurisdictions in the plan: Aumsville city (1 record), Jefferson city (1 record), Keizer city (1 record), Salem city (1 record), Turner city (1 record).	Before 1996 a tornado is listed once, under the county where it began, with its whole path's rating and length; from 1996 on, each county lists its own segment. Length is not used to rank tornadoes (see Methods).
Volcanic Ash, Volcanic Ashfall	Volcanic Explosivity Index (local data)	0					Physical measure: in event narratives only (local data needed).
Wildfire	acres burned (local data)	25 records, 2001 to 2023 (24 zone-level)		Wildfire, 2001-08-12, $4,300,000 property; crops not reported (2001 dollars)		No event record names a jurisdiction in the plan. Zone-level records (24) apply countywide.	Acres burned: in event narratives only (local data needed).
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet	none in data (snowfall: local data)	300 records, 1996 to 2026 (300 zone-level)		Winter Storm, 2008-12-20, $2,200,000 property; $8,100,000 crops (2008 dollars); NWS zone ORZ007		Countywide (zone-level records).	Snow depth: in event narratives only (local data needed).

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records whose zone no NWS zone-county file places in this county (mostly before 2020) are not counted here (the Methods page explains the zone matching).

Dollars are nominal (as reported), labeled with the year; not adjusted for inflation.

Supports FEMA checklist item B1-d: previous occurrences

Federal declarations for this county: 15 declarations covering 10 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).

Federal disaster declarations for this county

Sources: 1, 2, 3

Declared	Incident began	FEMA number	Type	Title	Mapped hazard	County Public Assistancefederal share obligated, nominal dollars	Flags	Notes
2023-08-24	2023-08-23	FM-5483-OR	Fire management	Liberty Fire	Wildfire	no Public Assistance recorded	new since last plan; within last 5 years
2021-05-04	2021-02-11	DR-4599-OR	Major disaster	Severe Winter Storm	Winter Weather	$9,795,870.36
2020-09-15	2020-09-07	DR-4562-OR	Major disaster	Wildfires and Straight-Line Winds	Wildfire	$13,699,677.61
2020-09-10	2020-09-08	EM-3542-OR	Emergency	Wildfires	Wildfire	no Public Assistance recorded		same incident as DR-4562
2020-09-08	2020-09-07	FM-5356-OR	Fire management	Beachie Creek Lionshead Fire Complex	Wildfire	no Public Assistance recorded		same incident as DR-4562
2020-03-28	2020-01-20	DR-4499-OR	Major disaster	COVID-19 Pandemic	Non-natural, not counted	$31,950,772.80
2020-03-13	2020-01-20	EM-3429-OR	Emergency	COVID-19	Non-natural, not counted	no Public Assistance recorded		same incident as DR-4499
2012-03-02	2012-01-17	DR-4055-OR	Major disaster	Severe Winter Storm, Flooding, Landslides, and Mudslides	Inland Flooding (primary); also designated: Landslide, Winter Weather	$2,337,894.47
2009-03-02	2008-12-13	DR-1824-OR	Major disaster	Severe Winter Storm, Record and Near Record Snow	Winter Weather	$723,315.70
2005-09-07	2005-08-29	EM-3228-OR	Emergency	Hurricane Katrina Evacuation	Hurricane: evacuation support, not a local hazard event; not counted	no Public Assistance recorded
2004-02-19	2003-12-26	DR-1510-OR	Major disaster	Severe Winter Storms	Winter Weather	$1,107,605.66
1996-02-09	1996-02-04	DR-1099-OR	Major disaster	High Winds, Severe Storms and Flooding	Inland Flooding (primary); also designated: Strong Wind	no Public Assistance recorded
1993-04-26	1993-03-25	DR-985-OR	Major disaster	Earthquake	Earthquake	no Public Assistance recorded
1974-01-25	1974-01-25	DR-413-OR	Major disaster	Severe Storms, Snowmelt & Flooding	Inland Flooding	no Public Assistance recorded
1964-12-24	1964-12-24	DR-184-OR	Major disaster	Heavy Rains & Flooding	Inland Flooding	no Public Assistance recorded

County Public Assistance: applicants the FEMA record places in this county, including any state agencies FEMA files there; statewide rows are listed on the state page; federal share obligated, nominal dollars.

Statewide declarations

Source: 2

Declared	Incident began	FEMA number	Type	Title	Mapped hazard
1963-02-25	1963-02-25	DR-144-OR	Major disaster	Floods	Inland Flooding
1962-10-16	1962-10-16	DR-136-OR	Major disaster	Severe Storms	Hazard not mapped (severe storm title names no single hazard); not counted
1957-03-01	1957-03-01	DR-69-OR	Major disaster	Flood	Inland Flooding
1956-07-20	1956-07-20	DR-60-OR	Major disaster	Storm & Flood	Inland Flooding
1955-12-29	1955-12-29	DR-49-OR	Major disaster	Flood	Inland Flooding

FEMA recorded these with designated area Statewide and no county, so they are listed on every county page in the state and not counted with county rows. Local data needed: whether each one affected this county.

27 Fire Management declarations (1973-08-17 to 2001-08-17) FEMA filed as Statewide with no county; each names one local fire. Listed on the state page.

Public Assistance filed under this county for declarations that do not list it: 8 rows, $2,571,612.81

Sources: 2, 3

FEMA number	Declared	Title	Applicant	PA obligatedfederal share obligated, nominal dollars
DR-4907-OR	2026-04-07	Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides	Salem, City of	$19,500
DR-4907-OR	2026-04-07	Severe Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides	Aurora Fire District	$7,003.46
DR-4258-OR	2016-02-17	Severe Winter Storms, Straight-Line Winds, Flooding, Landslides, and Mudslides	Oregon Parks and Recreation Department	$1,119,185.03
DR-1956-OR	2011-02-17	Severe Winter Storm, Flooding, Mudslides, Landslides, and Debris Flows	Oregon Parks and Recreation Department	$65,524.28
DR-1733-OR	2007-12-08	Severe Storms, Flooding, Landslides, and Mudslides	Oregon Parks and Recreation Department	$1,190,340.90
DR-1683-OR	2007-02-22	Severe Winter Storm and Flooding	Oregon Parks and Recreation Department	$20,647.39
DR-1632-OR	2006-03-20	Severe Storms, Flooding, Landslides, and Mudslides	Oregon Parks and Recreation Department	$36,739.41
DR-1405-OR	2002-03-12	Severe Winter Storm with High Winds	Oregon Parks and Recreation Department	$112,672.34

FEMA's Public Assistance summaries file these applicants under this county, but FEMA's declaration rows for these disasters do not designate it (an electric cooperative or district serving several counties, for example). Not in any declaration row above and not counted.

Public Assistance not placed in any Oregon county: 1 row, $479,867.27; listed on the Oregon state page.

Source: 3

Previous occurrences by hazard, with explicit no-event rows

Sources: 2, 6, 7

Hazard	Storm Events records, all years on file(years in the Period column)	Since plan approvalrecords	In the 12 months before plan approvalrecords	Last 5 yearsrecords	Declared incidents, all yearsseparate disasters	Declared since approvalseparate disasters	Period	Statement
Avalanche	1	0	0	0	0	0	1996 to 2026-06-30
Cold Wave	8	2	1	3	0	0	1996 to 2026-06-30	Includes 3 Frost/Freeze records.
Drought	0	0	0	0	0	0	1996 to 2026-06-30	No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Earthquake	0	0	0	0	1	0		Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail	6	1	0	1	0	0	1955 to 2026-06-30
Heat Wave	18	0	3	3	0	0	1996 to 2026-06-30
Hurricane	0	0	0	0	0	0	1996 to 2026-06-30	No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm	9	1	0	1	0	0	1996 to 2026-06-30
Inland Flooding	34	2	0	2	4	0	1996 to 2026-06-30
Landslide	4	0	0	0	1	0	1996 to 2026-06-30
Lightning	3	0	0	0	0	0	1996 to 2026-06-30
Strong Wind	70	0	3	5	1	0	1955 to 2026-06-30	Includes 43 High Wind and 17 Strong Wind records.
Tornado	11	0	1	1	0	0	1950 to 2026-06-30
Volcanic Activity	0	0	0	0	0	0	1996 to 2026-06-30	No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire	25	1	1	2	2	1	1996 to 2026-06-30
Winter Weather	300	23	7	37	4	0	1996 to 2026-06-30	Includes 1 Sleet record.

Notable Storm Events records

Sources: 1, 6, 7

Date	Event type	Magnitude or extent	Damagenominal dollars	Deaths, injuriesdirect only	Location	Flags	Why listed
2022-07-28	Excessive Heat		$0 property; $0 crops, reported for the zone (2022 dollars)	4, 0	NWS zone ORZ007 (CENTRAL WILLAMETTE VALLEY), zone-level	in the 12 months before plan approval; within last 5 years	deaths or injuries recorded
2021-06-26	Excessive Heat		$0 property; $0 crops, reported for the zone (2021 dollars)	16, 0	NWS zone ORZ007 (CENTRAL WILLAMETTE VALLEY), zone-level		deaths or injuries recorded
2021-02-11	Ice Storm		$10,000,000 property; $0 crops, reported for the zone (2021 dollars)	0, 0	NWS zone ORZ007 (CENTRAL WILLAMETTE VALLEY), zone-level		B1-c worst recorded: Ice Storm
2020-09-07	High Wind	61 kt (70 mph) estimated gust	$2,000,000,000 property; $0 crops, reported for the zone (2020 dollars)	5, 0	NWS zone ORZ010 (NORTH OREGON CASCADES FOOTHILLS), zone-level		deaths or injuries recorded
2015-07-01	Heat		$0 property; $0 crops, reported for the zone (2015 dollars)	0, 0	NWS zone ORZ007 (Central Willamette Valley), zone-level		B1-c worst recorded: Excessive Heat, Heat
2014-05-17	Lightning		$75,000 property; $0 crops (2014 dollars)	0, 0	WOODBURN		B1-c worst recorded: Lightning
2012-01-20	Flood		$1,000,000 property; $0 crops (2012 dollars)	0, 0	ORVILLE to ST PAUL		B1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2010-12-14	Tornado	EF2, 5 mi within this county, 150 yd wide	$1,200,000 property; $0 crops (2010 dollars)	0, 2	AUMSVILLE to SHAW		B1-c worst recorded: Tornado
2009-06-04	Thunderstorm Wind	70 kt (81 mph) estimated gust	$2,000 property; $0 crops (2009 dollars)	0, 0	SALEM		B1-c worst recorded: Thunderstorm Wind
2008-12-20	Winter Storm		$2,200,000 property; $8,100,000 crops, reported for the zone (2008 dollars)	0, 0	NWS zone ORZ007 (CENTRAL WILLAMETTE VALLEY), zone-level		B1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
1999-02-05	High Wind	104 kt (120 mph), measurement type not recorded	$10,000 property; crops not reported, reported for the zone (1999 dollars)	0, 0	Storm Events area SE MULTNOMAH/C & S HOOD RIVER/E CLAKAMAS/E MARION/E LINN/E LANE (legacy zone code ORZ011), zone-level		B1-c worst recorded: High Wind and Strong Wind
1998-12-18	Cold/Wind Chill		damage not reported	0, 0	Storm Events area CENTRAL WILLAMETTE VALLEY INCLUDING SALEM (legacy zone code ORZ005), zone-level		B1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill

The full list is in the Excel file, sheet "B1-d Storm Events history" (489 rows).

Location is the place NOAA recorded, as written in its data; it need not be a jurisdiction in this plan.

Local data needed: state-declared emergencies, from your state emergency management agency (federal data do not include them).

Tribal and special-area declarations in this state are listed on the state page.

Supports FEMA checklist item B1-e: probability of future events

Probability: FEMA annualized frequency and descriptor per hazard

Sources: 5, 6

Hazard	FEMA annualized frequency (modeled)unit per row	Unit	In plain terms	Descriptor	Descriptor basis	NRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)	NRI period	Location	Note
Avalanche	0.01	events per year	about 1 in 100 years	Possible	FEMA annualized frequency (modeled)	0	1994 to 2023 (30 years)	see B1-f	0.01 is NRI's minimum avalanche frequency for a county in an avalanche susceptibility zone; NRI records no avalanche here, so the descriptor reflects the floor, not local events.
Cold Wave	0.238	event-days per year	about 0.238 days per year	Likely (from Storm Events: 4 of 30 years)	event-days in 4 of 30 years, 1996 to 2025 (13.3%)	4.53	2005-11-12 to 2024-11-12 (19 years)	countywide
Drought	5.77	event-days per year	about 5.77 days per year		event-days in 0 of 30 years, 1996 to 2025 (0%)	322	2000 to 2025 (25.25 years; D3 and D4 only)	countywide	No Storm Events drought record, 1996 to 2025
Earthquake	0.0194	annual probability at a location	chance a given location in the county has at least minor-damage shaking in a year: 1.94%			not shown	modeled	see B1-f	No descriptor (Storm Events does not record earthquakes).
Hail	0.131	events per year	about 1 in 8 years	Likely	FEMA annualized frequency (modeled)	5.0 (modeled)	1986 to 2023 (38 years)	countywide
Heat Wave	5.62	event-days per year	about 5.62 days per year	Likely (from Storm Events: 9 of 30 years)	event-days in 9 of 30 years, 1996 to 2025 (30%)	87.1	2005-11-12 to 2024-11-12 (19 years)	countywide
Hurricane		events per year					1851 to 2024 (Atlantic); 1949 to 2024 (Pacific)	see B1-f	Not Applicable in NRI for this county; no descriptor.
Ice Storm	0.636	event-days per year	about 0.636 days per year	Likely (from Storm Events: 6 of 30 years)	event-days in 6 of 30 years, 1996 to 2025 (20%)	43	1946-12-31 to 2014-02-12 (67 years)	countywide
Inland Flooding	0.714	event-days per year	about 0.714 days per year	Likely (from Storm Events: 20 of 30 years)	event-days in 20 of 30 years, 1996 to 2025 (66.7%)	20	1996 to 2023 (28 years)	see B1-f
Landslide	3.63	events per year (modeled)	about 3.63 per year	Highly likely	FEMA annualized frequency (modeled)	not shown	modeled	see B1-f
Lightning	7.27	days per year with a strike	about 7.27 days per year	Highly likely	FEMA annualized frequency (modeled)	not shown	1995 to 2023 (29 years; CONUS)	countywide
Strong Wind	0.0645	events per year	about 1 in 15 years	Possible	FEMA annualized frequency (modeled)	3	1986 to 2023 (38 years)	countywide
Tornado	0.1	events per year	about 1 in 10 years	Likely	FEMA annualized frequency (modeled)	not shown	1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)	see B1-f
Volcanic Activity	0.0122	annual probability	about 1 in 82 years	Possible	FEMA annualized frequency (modeled)	not shown	modeled	see B1-f
Wildfire	0.000104	annual probability at a location	chance a given location in the county burns in a year: 0.0104%	Likely (from Storm Events: 10 of 30 years)	Storm Events records in 10 of 30 years, 1996 to 2025 (33.3%)	not shown	modeled	see B1-f	Descriptor from Storm Events, not NRI.
Winter Weather	18.4	event-days per year	about 18.4 days per year	Highly likely (from Storm Events: 30 of 30 years)	event-days in 30 of 30 years, 1996 to 2025 (100%)	351	2005-11-12 to 2024-11-12 (19 years)	countywide

FEMA annualized frequency (modeled) is the National Risk Index v1.20 (December 2025) estimate of how often a hazard affects this county in a year; it is not recorded events divided by years, and its unit differs by hazard (events, event-days, or days with a lightning strike per year). For earthquake, wildfire, coastal flooding and tsunami the value is the chance (or number of events) at a location in the county, not across the county, so no "1 in N years" is given and the descriptor comes from Storm Events where it has a record (none for earthquake). The Methods page gives each hazard's method, from FEMA's National Risk Index Technical Documentation v1.20.

Where NRI gives event-days, the descriptor comes from the share of years with a Storm Events record; NRI's source records more events, so the two differ.

Descriptor scale used in this packet (defined per unit)

Sources: 5, 6

Unit	Descriptor	Definition
events per year	Highly likely	1 or more per year
events per year	Likely	about once in 1 to 10 years
events per year	Possible	about once in 10 to 100 years
events per year	Unlikely	less than once in 100 years
annual probability	Likely	10% to under 100% chance in a given year
annual probability	Possible	1% to under 10% chance in a given year
annual probability	Unlikely	under 1% chance in a given year
event-days (share of years)	Highly likely	event-days recorded in 90% or more of years
event-days (share of years)	Likely	event-days recorded in 10% to under 90% of years
event-days (share of years)	Possible	event-days recorded in some years but under 10% of years
lightning strike-days	Highly likely	cloud-to-ground strikes on 1 or more days per year

Intensity bands: historical frequency (Storm Events)

Source: 6

Hazard	Band	Years	Eventscounty-coded records	Years in period	Events per yearevents / years
Hail	1.00-1.99 in	1996 to 2025	2	30	0.0667
Hail	2.00 in+	1996 to 2025	0	30	0
Thunderstorm Wind (counted as NRI Strong Wind)	50-64 kt	1996 to 2025	1	30	0.0333
Thunderstorm Wind (counted as NRI Strong Wind)	65 kt+	1996 to 2025	2	30	0.0667
Thunderstorm Wind (counted as NRI Strong Wind)	unmeasured or below 50 kt	1996 to 2025	6	30	0.2
Tornado	EF0-1	1996 to 2025	8	30	0.267
Tornado	EF2-3	1996 to 2025	1	30	0.0333
Tornado	EF4-5	1996 to 2025	0	30	0
Tornado	unrated (EFU)	1996 to 2025	0	30	0

The bands show how often events of each severity were recorded in this county, to profile how severe events have been (FEMA's probability item asks for the range of intensities).

Hail smaller than 1 inch is not counted: on 2010-01-05 the National Weather Service raised its severe-hail threshold from 3/4 inch to 1 inch, so smaller reports became less common after 2009 (NWS Service Change Notice 09-52). NRI hail frequency uses a 0.75 inch threshold.

Optional: future conditions. Not a required item in the 2025 FEMA Local Mitigation Planning Policy Guide; some states ask for it. The federal Climate Mapping for Resilience and Adaptation (CMRA) site gives county exposure to future climate conditions (https://resilience.climate.gov/).

Supports FEMA checklist item B1-f: hazards that vary across jurisdictions

Range of census tract risk within the county

Source: 5

Hazard	Tractsrated of all	NRI risk score, 0 to 100			Tracts by rating
Hazard	Tractsrated of all	Min	Median	Max	Tracts by rating
Avalanche	3 of 65	14.7	18.2	18.5	Very Low 3, Not Applicable 62
Cold Wave	65 of 65	18.9	28.0	45.5	Relatively Low 64, Very Low 1
Drought	28 of 65	66.8	68.4	76.6	Very Low 28, No Rating 37
Earthquake	65 of 65	73.8	93.7	100.0	Very High 14, Relatively High 34, Relatively Moderate 16, Relatively Low 1
Hail	65 of 65	17.6	31.5	54.7	Relatively Low 19, Very Low 46
Heat Wave	65 of 65	48.4	80.7	91.0	Relatively High 22, Relatively Moderate 40, Relatively Low 3
Hurricane	0 of 65				Not Applicable 65
Ice Storm	65 of 65	13.4	44.2	66.3	Relatively Low 53, Very Low 12
Inland Flooding	65 of 65	2.7	42.2	94.7	Relatively High 6, Relatively Moderate 21, Relatively Low 32, Very Low 6
Landslide	64 of 65	8.7	33.9	98.3	Relatively Moderate 2, Relatively Low 6, Very Low 56, No Rating 1
Lightning	65 of 65	24.0	58.3	84.0	Relatively High 7, Relatively Moderate 43, Relatively Low 15
Strong Wind	65 of 65	29.7	62.8	89.9	Relatively High 5, Relatively Moderate 43, Relatively Low 17
Tornado	65 of 65	3.4	10.8	18.9	Very Low 65
Volcanic Activity	65 of 65	86.7	94.6	98.9	Relatively Moderate 2, Relatively Low 63
Wildfire	63 of 65	19.0	50.0	89.9	Relatively Moderate 1, Relatively Low 7, Very Low 55, No Rating 2
Winter Weather	65 of 65	31.2	53.1	67.6	Relatively Moderate 47, Relatively Low 18

Drought: Agriculture is all of NRI's expected annual loss for this hazard in the county, so the tract range mostly reflects where crop and livestock value is.

Rated tracts only: No Rating (score 0.0), Not Applicable and Insufficient Data tracts are counted but not used for the minimum, median and maximum.

The score ranks a tract against all U.S. tracts (100 = highest). The rating is FEMA's category for the tract's risk value, computed differently, so the two can disagree.

Frequency data for cold wave, drought, hail, heat wave, ice storm, lightning, strong wind and winter weather are county-wide or coarse (49 km grid or NWS zone), the same for every jurisdiction; the tract range mostly reflects where buildings and people are (crop and livestock value where a line above names agriculture).

Each jurisdiction (starting figures from federal data)

Sources: 1, 3, 4, 6

Jurisdiction	Type	Plan status	Repetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definition	Public Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollars	Event records naming this placeall years; since its plan	Notes
Marion County	County	Approved, expires 2028-04-05	FMA RL 0, SRL 1; any 6	$7,378,976.76	0 total; 0 since its plan
Aumsville city	City	Approved, expires 2028-04-05	FMA RL 0, SRL 0; any 0	$84,360.46	1 total; 0 since its plan
Aurora city	City	Approved, expires 2028-04-05	FMA RL 0, SRL 0; any 0	$60,640.28	13 total; 1 since its plan
Detroit city	City	Approved, expires 2028-04-05	FMA RL 0, SRL 0; any 0	$7,310,529.15	0 total; 0 since its plan
Gervais city	City	Approved, expires 2028-04-05	FMA RL 0, SRL 0; any 0	$105,527.63	0 total; 0 since its plan
Hubbard city	City	Approved, expires 2028-04-05	FMA RL 0, SRL 0; any 0	$35,102.16	0 total; 0 since its plan
Jefferson city	City	Approved, expires 2028-04-05	FMA RL 0, SRL 0; any 0	no Public Assistance recorded	9 total; 0 since its plan
Keizer city	City	Approved, expires 2028-04-05	FMA RL 0, SRL 0; any 1	$232,644.16	2 total; 0 since its plan
Mount Angel city	City	Approved, expires 2028-04-05	FMA RL 0, SRL 0; any 1	$64,406.15	1 total; 0 since its plan
Salem city	City	Approved, expires 2028-12-04	FMA RL 0, SRL 2; any 7	$7,250,421.13	4 total; 0 since its plan	Whole community, including the part in Lincoln County; in-county portion (county table): FMA RL 0, FMA SRL 1, NFIP RL 6, NFIP SRL 1, any category 6. Includes $1,833,646.92 for declarations not counted as hazard incidents (DR-4499-OR).
Scotts Mills city	City	Approved, expires 2028-04-05	FMA RL 0, SRL 0; any 0	$44,307.56	1 total; 1 since its plan
Stayton city	City	Approved, expires 2028-04-05	FMA RL 0, SRL 0; any 0	$15,935.41	0 total; 0 since its plan
Sublimity city	City	Approved, expires 2028-04-05	FMA RL 0, SRL 0; any 0	$70,308.12	1 total; 0 since its plan
Turner city	City	Approved, expires 2028-04-05	FMA RL 0, SRL 1; any 2	$166,644.48	2 total; 0 since its plan
Woodburn city	City	Approved, expires 2028-04-05	FMA RL 0, SRL 0; any 0	no Public Assistance recorded	3 total; 0 since its plan

Repetitive-loss counts are for whole NFIP communities, which can extend beyond this county (see the note in B2-c).

School districts and special districts get a plan clock row only.

County Public Assistance in B1-d also includes applicants filed under the county that are not jurisdictions in this plan (for example state agencies, special districts and nonprofits), so the jurisdiction rows add up to less.

Supports FEMA checklist items B2-a and B2-b: vulnerability and potential impacts

Local data needed

The table below gives county-level starting figures; the plan describes impacts for each jurisdiction and its own assets.

Critical facilities and lifelines per hazard
A problem statement per jurisdiction per hazard
Changes in development in hazard-prone areas since the last approval, or a statement of none (E1-a)
Future assets

County-level starter: exposure, expected annual loss and damage since the plan

Sources: 1, 2, 3, 5, 6, 7

Hazard	Building exposuremodeled dollars	Agriculture exposuremodeled dollars	Population exposedpeople	EAL buildingsmodeled dollars per year	EAL agriculturemodeled dollars per year	Cost of expected deaths and injuriesFEMA's dollar value per year, not property damage	EAL as % of exposurebuildings; agriculture where noted	Storm Events damage since 2023-04-06county-coded records, property plus crops, nominal dollars	Zone-level damage since planproperty plus crops, reported for the zone	Public Assistance since plannominal dollars; see note	Note
Avalanche	$1,926,248	n/a	under 1	$2	n/a	$120	0.000105%
Cold Wave	$70,507,805,942	$903,295,033	344,064	$1,750	$610	$929,820	under 0.0001%		$0
Drought	n/a	$302,953,088	n/a	n/a	$1,122	n/a	0.00037% (agriculture)				NRI has no building exposure for this hazard; agriculture shown
Earthquake	$127,472,509,037	n/a	345,920	$68,158,368	n/a	$54,034,722	0.0535%
Hail	$70,507,805,942	$903,295,033	344,064	$126,765	$23,799	$21,498	0.00018%
Heat Wave	$70,507,805,942	$903,295,033	344,064	$1,863	$178,423	$6,409,070	under 0.0001%
Hurricane											Not Applicable in NRI for this county
Ice Storm	$70,507,776,379	n/a	344,063	$106,516	n/a	$138,222	0.000151%		$0
Inland Flooding	$70,465,125,704	$125,555,385	11,070	$37,316,307	$19,074	$126,171	n/a (see note)	$0			NRI counts the full building value of any census block with some flood loss; this is not the value of buildings in the floodplain. Use local FIRM overlays for B2-a/B2-b.
Landslide	$1,434,087,753	n/a	6,386	$7,581	n/a	$14,993	0.000529%
Lightning	$70,507,805,942	n/a	344,064	$26,044	n/a	$960,191	under 0.0001%
Strong Wind	$70,507,805,942	$903,295,033	344,064	$1,556,611	$253	$300,866	0.00221%
Tornado	$70,507,805,942	$903,295,033	344,064	$35,185	$1,308	$231,692	under 0.0001%
Volcanic Activity	$70,507,805,942	n/a	344,064	$28,661	n/a	$55,055	under 0.0001%
Wildfire	$5,112,782,118	$87,034,727	23,500	$71,010	$16	$4,091	0.00139%		$0	no Public Assistance recorded (1 declaration)
Winter Weather	$70,507,805,942	$903,295,033	344,064	$8,720	$8,752	$162,359	under 0.0001%		$0

Totals since 2023-04-06 (Storm Events through 2026-06-30): 3 county-coded records, 2 with a damage value recorded (including $0), $0; 27 zone-level records, 27 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance: none recorded on the 1 counted declaration.

FEMA does not split Public Assistance by hazard. A declaration mapped to several hazards is listed under each of them with its full amount, so the per-hazard column does not add up to the total; the unit total counts each declaration once.

NRI computes earthquake exposure on its own basis, so it exceeds the county building value in B2-a.

Supports FEMA checklist item B2-a: vulnerability (county context)

County context

Source: 5

Measure	Value
Population	344,064
Building value (total, not at risk)	$70,507,805,942
Agriculture value (total, not at risk)	$903,295,033
NRI risk rating (all hazards)	Relatively High
Expected annual loss, buildings and agriculture, all hazards	$107,678,738
Expected annual loss, population equivalence, all hazards (NRI values each statistical life at $13.7M; a modeled value of expected deaths and injuries, not property damage)	$63,388,868
Social vulnerability rating	Relatively Moderate
Community resilience rating	Relatively Moderate
NRI version	December 2025

FEMA's all-hazard expected annual loss adds buildings, agriculture and population equivalence; this table gives the property part and the population-equivalence part as separate rows.

Social vulnerability: higher means people are more likely to be harmed and slower to recover. Community resilience: lower means the community is less able to recover. High social vulnerability and low resilience both raise the NRI risk rating.

Supports FEMA checklist item B2-c: repetitive loss properties

Repetitive loss in this county, both definitions

Sources: 1, 4

Definition	Properties	Severe repetitive loss	Properties
Repetitive loss, FMA definition (44 CFR 77.2)	0	Severe repetitive loss, FMA definition (44 CFR 77.2)	3
Repetitive loss, NFIP insurance definition	16	Severe repetitive loss, NFIP insurance definition	3

The state NFIP coordinator's list, the source FEMA's Handbook names, often uses the NFIP insurance definition (second row).

Repeat-flood properties: county and state-level rows

Sources: 1, 4

Scope	SRL, FMAproperties	RL, NFIPproperties	SRL, NFIPproperties	Any categoryproperties	Currently insuredproperties
County total	3	16	3	16	6
of which: Marion County (unincorporated area)	1	6	1	6	4
of which: Mt. Angel city	0	1	0	1	0
of which: Salem city	1	6	1	6	2
of which: Turner city	1	2	1	2	0
of which: Keizer city	0	1	0	1	0
Statewide, no county in FEMA's file	0	1	0	1	0

The statewide row counts properties FEMA's file gives with no county in this state; they are listed for reference and are not in this county's counts.

Repeat-flood properties by jurisdiction in the plan (NFIP community)

Sources: 1, 4

Jurisdiction	NFIP community ID	SRL, FMAproperties	RL, NFIPproperties	SRL, NFIPproperties	Any categoryproperties	Currently insuredproperties	Note
Marion County	410154	1	6	1	6	4
Aumsville city	410155	0	0	0	0	0
Aurora city	410156	0	0	0	0	0
Detroit city	410157	0	0	0	0	0
Gervais city	410160	0	0	0	0	0
Hubbard city	410161	0	0	0	0	0
Jefferson city	410163	0	0	0	0	0
Keizer city	410288	0	1	0	1	0
Mount Angel city	410165	0	1	0	1	0
Salem city	410167	2	7	2	7	2	Whole community, including the part in Lincoln County; in-county portion (county table): FMA RL 0, FMA SRL 1, NFIP RL 6, NFIP SRL 1, any category 6.
Scotts Mills city	410168	0	0	0	0	0
Stayton city	410170	0	0	0	0	0
Sublimity city	410274	0	0	0	0	0
Turner city	410171	1	2	1	2	0
Woodburn city	410172	0	0	0	0	0

Counts by occupancy group for each jurisdiction are in the Excel file, sheet "B2-c Jurisdictions".

Jurisdiction rows are whole NFIP communities and need not add up to the county total: a community that extends into another county is counted in full on each jurisdiction row, while the county table counts only its part in this county.

County repeat-flood properties by occupancy group

Sources: 1, 4

Occupancy group	SRL, FMAproperties	RL, NFIPproperties	SRL, NFIPproperties	Any categoryproperties	Currently insuredproperties
single-family residential	2	11	2	11	5
2 to 4 unit residential	0	1	0	1	0
other residential	0	0	0	0	0
non-residential	1	4	1	4	1
not reported	0	0	0	0	0

FEMA's occupancy groups have no institutional class; institutional properties are counted in non-residential or other residential in the table by occupancy group.

FMA RL and FMA SRL are the Flood Mitigation Assistance definitions (44 CFR 77.2), the ones the FEMA Local Mitigation Planning Policy Guide cites. NFIP repetitive loss (the FEMA insurance definition) is 2 or more claims over $1,000 in 10 years, and a property can leave that group once it is mitigated. Also shown: NFIP severe repetitive loss, any category, mitigated and currently insured. The Methods page gives the OpenFEMA field details.

Counts are aggregates of FEMA's public NFIP Multiple Loss Properties file (FEMA's data date 2026-08-02; file version 2026-08-04). No property is identified. County assignment is FEMA's geocode.

In this county 0 properties are FMA repetitive loss but not NFIP repetitive loss, and 16 properties are NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

Tables cite these sources by number. The full list, for the plan's bibliography (FEMA review item A4-a):

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-29T134039Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-29T162832Z, pulled 2026-09-30, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-29T150754Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)
FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-30, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)
NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-30, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/
NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-30, https://www.weather.gov/gis/ZoneCounty
U.S. Census Bureau, Census 2024 Gazetteer, 2020 place by county, CT county-to-cousub crosswalk, version 2024-gazetteer, pulled 2026-09-30, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_counties_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_cousubs_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_place_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_unsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_elsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_scsd_national.zip, https://www2.census.gov/geo/docs/reference/codes2020/national_place_by_county2020.txt, https://www2.census.gov/geo/docs/reference/ct_change/ct_cou_to_cousub_crosswalk.xlsx (used to match place names and codes; no table prints its values)

What this packet is and what the plan adds

This packet is the federal data for the plan's risk assessment, organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B. Each section heading names the item its tables support; the plan and FEMA's review decide whether the item is met.

The plan adds what only the community has: local data on assets, critical facilities, development and each jurisdiction's impacts; local hazard history, including state-declared emergencies; the mitigation strategy; and adoption.

How the federal data are built: National Risk Index values are FEMA's model, not counts of events. Storm Events is more complete from 1996; zone-level records are placed by forecast zone, not by location in the county. Public Assistance for a jurisdiction is matched by applicant name. The Methods page gives every rule and the known edge cases.

OpenFEMA disclaimer

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

Reuse, citation and corrections

Reuse and citation: Hazard Plain text and tables are licensed under Creative Commons Attribution 4.0 International (CC BY 4.0, https://creativecommons.org/licenses/by/4.0/); credit Hazard Plain and the release. The underlying federal data are public domain; OpenFEMA data are also subject to the OpenFEMA terms and conditions.

Cite this: Hazard Plain (2026). Marion County, OR: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 41047). Automated baseline. https://hazardplain.org/or/41047/ Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.

Corrections: to report an error, name the packet, the table and what your records show. Contact: [email protected]

Hazard Plain release 2026-10. As of 2026-09-30; Storm Events data through 2026-06-30. Automated baseline.