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Washington · FEMA + NOAA + National Risk Index

Thurston County, WA

5 FEMA disaster declarations (2020–2026), with a FEMA National Risk Index rating of Relatively High. Most common hazard: Flood.

5
FEMA declarations
3
Major disasters
94
NRI risk · Relatively High
Flood
Top hazard

The verdict

Thurston County ranks in the riskiest 6% of U.S. counties for FEMA-modeled hazard risk, with more federally declared disasters than 71% of the 2,791 counties FEMA tracks. FEMA rates the county's overall risk as Relatively High, based on 5 federal disaster declarations recorded since 2020, most often flood, 30% above the national county average of 4.

Riskiest 6%
of U.S. counties for FEMA National Risk Index score
Relatively High
FEMA National Risk Index rating
5
FEMA declarations vs 4 national county avg
3
flood declarations, the most common hazard here

FEMA's National Risk Index score reflects expected annual loss, social vulnerability, and community resilience; the declaration count above reflects only Presidentially declared disasters, not every hazard event.

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How does Thurston County compare?

Thurston County vs. every U.S. county

FEMA disaster declarations, all-time

5 Top 29% higher than 71% of 2,791 counties

This county 0 30 all U.S. counties FEMA tracks, bucketed by value

Each bar is a band; taller bars hold more counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FEMA Disaster Declarations Summaries v2 · 2026-07-25

Thurston County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the Washington county average

0/100100/100Washington avg70/10094.5/100
FEMA National Risk Index composite score vs. the Washington county average

How disaster-prone is Thurston County?

Declaration frequency

Thurston County, Washington has recorded 5 FEMA disaster declarations between 2020 and 2026, of which 3 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at 0.8 declarations per year across a 6-year record, or roughly 22% below the Washington county average of 6.4 and 30% above the national county average of 3.8. The dominant disaster type on record is Flood, with 3 of 5 declarations falling under this category.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 94.5/100 (Relatively High). Expected Annual Loss is rated Relatively High (roughly $190.6M in annualized losses). Social vulnerability reads Very Low and community resilience Relatively High, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Landslide stands out as the sharpest exposure here, rated Relatively High.

Flood exposure & the bottom line

Taken together, these indicators put Thurston County at a moderate relative risk level, not the calmest county on record, but not among the most disaster-prone either.

Risk Assessment

Risk Level

Moderate

vs. Washington Avg

-22%

State avg: 6.4

vs. National Avg

+30%

National avg: 3.8

Avg Per Year

0.8

Over 6 years

FEMA NRI 8-hazard radar - Thurston County

Thurston County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard composite scores for Earthquake 70, Flood 25, Hurricane 0, Tornado 8, Wildfire 8, Drought 8, Heat Wave 48, Winter Storm 48. Overall composite 27 of 100, classified Moderate. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 27 composite
Thurston County NRI risk profile FIPS 53067 · composite 27/100 (Moderate)
How to read this radar

The radar plots Thurston County's relative exposure to the eight headline natural hazards used by the FEMA National Risk Index. Each axis is the qualitative NRI risk rating (Very Low through Very High) re-expressed on a 0-100 scale so that the polygon shape lets you compare a county against another at a glance. A rounder polygon means broad multi-hazard exposure; a spiky polygon means one or two dominant hazards drive most of the modeled risk.

FEMA Records

5

Total declarations

NRI Source

FEMA 2023

Latest NRI release

County FIPS

53067

WA state code

Source: FEMA National Risk Index FEMA National Risk Index Per-county per-hazard ratings, 2023 release

Disaster Types

Flood 3
Fire 1
Biological 1

Declaration Types

What DR / EM / FM mean

FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).

Major Disaster - 3 60.0%

of all 5 declarations

Emergency - 1 20.0%

of all 5 declarations

Fire Management - 1 20.0%

of all 5 declarations

FEMA Declarations Timeline

Year Declarations
2026 2
2022 1
2020 2

Disaster Declarations

DR# Title Type Incident Date
4906 SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Flood 2026-04-07
3629 SEVERE STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES EM Flood 2025-12-12
4650 SEVERE WINTER STORMS, SNOWSTORMS, STRAIGHT-LINE WINDS, FLOODIN DR Flood 2022-03-29
5359 BORDEAUX ROAD FIRE FM Fire 2020-09-09
4481 COVID-19 PANDEMIC DR Biological 2020-03-22

Storm Events in Washington

Storm Type Events Fatalities Injuries Property Damage
Heavy Snow 1,874 5 13 $2.4M
High Wind 686 15 6 $1.1B
Wildfire 357 4 5 $2.7B
Winter Weather 319 12 62 $1.3M
Flood 281 6 0 $396.2M

Source: NOAA Storm Events Database NOAA Storm Events Database State-level aggregated data, 2015–2025

FEMA National Risk Index

Overall Risk

Relatively High

Score: 94.5/100

Expected Annual Loss

Relatively High

$190.6M/year

Social Vulnerability

Very Low

Community Resilience

Relatively High

Hazard Risk Breakdown

Landslide Relatively High
Earthquake Relatively High
Volcanic Activity Relatively Moderate
Heat Wave Relatively Moderate
Ice Storm Relatively Moderate
Coastal Flooding Relatively Low
Wildfire Very Low
Winter Weather Relatively Low
Lightning Relatively Low
Strong Wind Relatively Low
Tornado Very Low
Tsunami Very Low
Drought Very Low
Hail Very Low
Avalanche Very Low
Cold Wave Very Low

Source: FEMA National Risk Index (NRI) FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri

Counties with Similar Risk in Washington

Frequently Asked Questions

How many natural disasters has Thurston County, Washington had?
Thurston County, Washington has received 5 FEMA disaster declarations from 2020 to 2026. Of these, 3 were major disaster declarations.
What is the most common disaster type in Thurston County?
The most common disaster type in Thurston County is Flood, with 3 declarations. Other disaster types include Fire (1), Biological (1).
How does Thurston County's disaster risk compare to the Washington average?
Thurston County has 5 disaster declarations, which is 22% lower than the Washington county average of 6.4 declarations. Compared to the national county average of 3.8, it is 30% higher.
How many major FEMA disaster declarations has Thurston County received?
Thurston County has received 3 major disaster declarations, representing 60% of all 5 disaster declarations. Major disaster declarations typically involve significant damage requiring federal assistance.
What types of storms are most common in Washington?
The most common storm types in Washington include Heavy Snow (1,874 events), High Wind (686 events), Wildfire (357 events). NOAA storm event data covers severe weather from 2015 to 2025.
What was the worst year for disasters in Thurston County?
The most active year for disaster declarations in Thurston County was 2020, with 2 declarations. The county has FEMA disaster data spanning 2020 to 2026.
What is the overall disaster risk level for Thurston County?
With 5 FEMA disaster declarations on record, Thurston County lands in the moderate-risk band, not unusually disaster-prone, but not spared either.
What is the FEMA National Risk Index score for Thurston County?
According to the FEMA National Risk Index, Thurston County, Washington has an overall risk score of 94.5 out of 100 (Relatively High). The county's social vulnerability rating is Very Low and community resilience is Relatively High. The Expected Annual Loss (EAL) score is Relatively High, representing $190.6M in annualized losses.
Which natural hazard poses the greatest risk to Thurston County?
Based on FEMA NRI data, the highest-risk natural hazard in Thurston County is Landslide (risk rating: Relatively High). Other significant hazards include Earthquake (Relatively High) and Volcanic Activity (Relatively Moderate). These scores are based on FEMA's analysis of historical event frequency, exposed assets, and community vulnerability.
Data Sources & Methodology

Disaster declaration data comes from the FEMA OpenFEMA Disaster Declarations Summaries v2 API, which includes all federally declared disasters, emergencies, and fire management assistance grants.

Storm event data is sourced from the NOAA Storm Events Database (2015–2025), which tracks significant weather events including thunderstorms, tornadoes, floods, and winter storms.

This data is provided for informational purposes only. FEMA disaster declarations represent federal response actions and may not capture all local emergencies or weather events.

What this means for Thurston County

Thurston County, WA runs 22% below the Washington county average for federal disaster declarations (5 vs 6), a moderate historical load overall.

  • Its most common federal declaration type is major disaster (3 of 5) - know the hazards most likely here before they happen. Washington overview
  • See how this county ranks against the rest of the country for disaster frequency. Most-disaster rankings
  • Read how to read FEMA declarations, NRI risk scores, and what they do and don't tell you. Disaster-data guide

Historical declaration counts describe past federal response, not a forecast. For current threats, follow the National Weather Service and local officials; in an emergency call 911.

All federal data sources used on this page
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial

Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →

Every figure on PlainHazard is rendered directly from FEMA federal disaster data, no number is typed in by an editor. This page draws directly on FEMA federal disaster data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, or report a data error.