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

Washington County Disaster Risk

Washington County, Arkansas

FEMA Risk Rating

Relatively Moderate

National Percentile

92th

of 3,144 counties

State Rank

#2

of 75 (1 = highest risk)

Flood Risk

90th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 90% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Moderate

Higher than 94% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively High

Higher than 95% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 84% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively Low

Higher than 54% of US counties

Risk Overview

About Natural Disaster Risk in Washington County, Arkansas

Washington County faces elevated disaster risk

Washington County's composite risk score of 92.27 is substantially above the national average, marking it as a relatively moderate-risk area and one of America's highest-risk counties. The score reflects significant and widespread hazard exposure across multiple disaster types. Residents here face far greater natural disaster vulnerability than typical Americans.

Highest-risk county in Arkansas

Washington County ranks first among all Arkansas counties with a composite risk score of 92.27, compared to the state average of 55.51. The county faces the greatest combined natural disaster exposure of any Arkansas county by a substantial margin. This exceptional standing reflects extraordinary vulnerabilities across tornadoes, wildfires, and floods.

Dramatically riskier than surrounding counties

Washington County's score of 92.27 far exceeds all adjacent counties, including Sebastian County (86.80) and Van Buren County (50.57). The county's risk exposure is unique in its region, with substantially higher tornado, wildfire, and flood vulnerabilities. This elevated hazard concentration distinguishes Washington County as exceptionally vulnerable within Arkansas.

Tornadoes, wildfires, and floods pose greatest threats

Tornado risk in Washington County reaches 95.36—nearly the nation's highest—creating an extraordinary severe weather threat that dwarfs other hazards. Wildfire risk scores 94.05 and flood risk reaches 90.14, creating a triple threat to homes and property. Together, these three hazards account for the county's exceptional composite risk score.

Invest in comprehensive protection now

Washington County residents should install a safe room or basement shelter immediately given the 95.36 tornado risk—the highest in Arkansas. Homeowners insurance must include comprehensive windstorm, hail, and flood coverage; separate flood insurance through NFIP is essential given the 90.14 flood risk. Wildfire insurance and defensible space maintenance around your property are equally critical given the 94.05 wildfire vulnerability.

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

Preparedness Guide

What to Prepare for in Washington County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    95th percentile
  2. #2
    WildfirePrepare
    94th percentile
  3. #3
    FloodPrepare
    90th percentile

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

Risk Advisory: Washington County

Risk Verdict

Washington County registers a moderately elevated natural disaster risk, ranking at the 92th percentile across all U.S. counties. High composite risk signals that multiple hazard types are elevated simultaneously; planning for more than one scenario is important in Washington County.

Hazard Breakdown

Tornado risk is Washington County's dominant natural hazard, ranked at the 95th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 94th percentile nationally. Additional tracked hazards include flood (90th percentile), earthquake (84th percentile), hurricane (54th percentile).

Preparedness Context

Washington County's primary hazard, tornado, ranks at the 95th percentile nationally. In Washington County, mobile homes and manufactured housing face significantly higher tornado risk than site-built structures; residents in these homes should identify the nearest permanent community shelter in advance. Alongside tornado exposure, wildfire at the 94th percentile nationally means Washington County households face multi-hazard severe-weather seasons that benefit from a single integrated emergency plan covering both threats. The highest-risk window for tornado fatalities is overnight, when Washington County residents may be asleep. A NOAA weather radio with overnight alert capability is the single most impactful low-cost preparedness step available to Washington County households.

Regional Context

Washington County falls 36.8 points above Arkansas's typical county risk level, which means the hazard environment here is notably more demanding than the state baseline.

Is your household prepared for Washington 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 Washington County, AR?
Washington County has a FEMA National Risk Index rating of Relatively Moderate, placing it in the 92th 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 Washington County?
Washington County is evaluated for five major natural hazard types: tornado (95th percentile), wildfire (94th percentile), flooding (90th percentile), earthquake (84th percentile), hurricane (54th percentile). The highest-risk hazard is tornado at the 95th 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 Washington County risk compare to the Arkansas average?
Washington County's composite risk percentile is 92th, compared to the Arkansas state average of 56th percentile. The state's overall risk rating is Relatively Low. This means Washington County faces higher natural disaster risk than the typical county in Arkansas.
Is Washington County at risk for tornado?
Yes, Washington County's tornado risk is at the 95th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Washington County is at the 90th 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.
Why is Washington County higher risk than average?
Washington County's composite risk score of 92th percentile is above the Arkansas state average of 56th percentile. This elevated risk is driven by tornado exposure (95th percentile), along with wildfire and flooding and earthquake and hurricane risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.
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.