riskbycounty
FEMA NRI 1.19.0Updated Nov 2023 · Coverage 2014–2023Methodology

Adams County Disaster Risk

Adams County, Washington

FEMA Risk Rating

Very Low

National Percentile

23th

of 3,144 counties

State Rank

#35

of 39 (1 = highest risk)

Flood Risk

34th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 34% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Moderate

Higher than 85% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 7% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 65% of US counties

Risk Overview

About Natural Disaster Risk in Adams County, Washington

Adams County faces very low disaster risk

With a composite risk score of 23.22, Adams County ranks well below the national average and sits in the very low risk category. This means residents experience substantially lower exposure to natural hazards compared to most American counties.

Among Washington's safest counties

Adams County's composite score of 23.22 sits far below Washington's state average of 70.01, placing it among the state's lowest-risk counties. Residents enjoy protection from multiple hazard types that pose greater threats in other parts of Washington.

Safer than surrounding counties

Adams County's risk profile (23.22) is significantly lower than Benton County to the south (87.09) and Chelan County to the north (90.87). The county benefits from a relatively benign natural hazard environment compared to its more mountainous and flood-prone neighbors.

Wildfire is your primary concern

Wildfire risk registers at 85.21 in Adams County, making it the dominant natural hazard threat despite the county's overall low composite score. Earthquake risk (64.57) presents a secondary concern, though flood and tornado risks remain minimal at 34.32 and 7.19 respectively.

Prioritize wildfire and earthquake coverage

While Adams County's overall risk is low, homeowners should ensure adequate wildfire insurance and earthquake coverage given those hazards' elevated scores. Standard homeowners policies don't cover earthquake or wildfire damage, requiring separate endorsements or dedicated policies to protect your investment.

Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor

Preparedness Guide

What to Prepare for in Adams County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    85th percentile
  2. #2
    EarthquakePrepare
    65th percentile
  3. #3
    FloodPrepare
    34th percentile

Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)

Risk Advisory: Adams County

Risk Verdict

Compared to the nation's 3,144 counties, Adams County ranks at the 23th percentile for natural disaster risk — toward the safer end of the spectrum. Adams County residents can take confidence from a 23th percentile ranking, but even lower-risk counties benefit from a practiced household communication plan and awareness of the specific hazards listed above.

Hazard Breakdown

Wildfire risk is Adams County's dominant natural hazard, ranked at the 85th percentile nationally under FEMA's National Risk Index. Earthquake ranks second at the 65th percentile nationally. Additional tracked hazards include flood (34th percentile), tornado (7th percentile).

Preparedness Context

Adams County sits at the 85th percentile for wildfire exposure. Signing up for Adams County's county emergency alert system and knowing the pre-planned evacuation route before conditions deteriorate are the two highest-value preparedness actions for residents here. Alongside wildfire, earthquake at the 65th percentile nationally means a multi-season preparedness mindset — fire season and flood or storm season often require different household plans. In Adams County, wildfire smoke often precedes the flame front by hours or days; households benefit from tracking EPA's AirNow.gov and having HEPA air filtration available as a first line of indoor protection when air quality alerts are issued.

Regional Context

At 46.8 points below the Washington state average, Adams County is among the lower-risk counties in the state for natural disaster exposure.

Is your household prepared for Adams County's hazards?

Review FEMA's county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

Frequently Asked Questions

What is the natural disaster risk in Adams County, WA?
Adams County has a FEMA National Risk Index rating of Very Low, placing it in the 23th percentile nationally out of 3,144 counties. This composite score reflects the county's overall exposure to natural hazards including floods, wildfires, tornadoes, earthquakes, and hurricanes, weighted by expected annual loss and social vulnerability.
What types of natural hazards affect Adams County?
Adams County is evaluated for five major natural hazard types: wildfire (85th percentile), earthquake (65th percentile), flooding (34th percentile), tornado (7th percentile). The highest-risk hazard is wildfire at the 85th percentile nationally. These scores are derived from FEMA's National Risk Index, which analyzes expected annual loss, social vulnerability, and community resilience for each hazard type.
How does Adams County risk compare to the Washington average?
Adams County's composite risk percentile is 23th, compared to the Washington state average of 70th percentile. The state's overall risk rating is Relatively Low. This means Adams County faces lower natural disaster risk than the typical county in Washington.
Is Adams County at risk for wildfire?
Yes, Adams County's wildfire risk is at the 85th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Adams County is at the 34th percentile.
How is natural disaster risk measured?
FEMA's National Risk Index (NRI) calculates risk scores for 18 natural hazard types across all U.S. counties and census tracts. The composite score combines Expected Annual Loss (estimated dollar losses from each hazard), Social Vulnerability (demographic factors affecting disaster impact), and Community Resilience (ability to recover). Percentile scores rank each county against all 3,144 U.S. counties, and risk ratings range from Very Low to Very High.
Is Adams County a safe place to live?
Adams County's composite risk score of 23th percentile is below the Washington state average of 70th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is wildfire at the 85th percentile. Residents should still maintain emergency preparedness plans and appropriate insurance coverage.
By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

Data Source

Risk data sourced from the FEMA National Risk Index (NRI). Risk scores are relative rankings (0–100) across all US counties — not absolute risk measures. Higher scores indicate higher relative risk compared to other counties.

Disclaimer: This data is informational only. It is not financial, insurance, or legal advice. Always consult a qualified professional before making insurance or real estate decisions.