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

Fayette County Disaster Risk

Fayette County, Iowa

FEMA Risk Rating

Relatively Low

National Percentile

51th

of 3,144 counties

State Rank

#24

of 99 (1 = highest risk)

Flood Risk

59th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 59% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 14% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 72% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 19% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 17% of US counties

Risk Overview

About Natural Disaster Risk in Fayette County, Iowa

Fayette's risk outpaces the nation

Fayette County scores 50.89 on natural disaster risk, placing it well above the national average and earning a "Relatively Low" rating. This means residents face above-typical exposure to climate hazards compared to most American counties, though local risk remains manageable overall.

Above average for Iowa

With a composite risk score of 50.89, Fayette ranks higher than Iowa's 39.68 state average, making it among the riskier counties in the state. This elevated profile reflects Iowa's natural hazard landscape more than most neighboring counties.

Riskier than most neighbors

Fayette's 50.89 score exceeds nearby Floyd County (47.74) and Franklin County (21.95), placing it in the higher-risk tier regionally. Only Hamilton County (42.91) comes close, though it remains below Fayette's exposure level.

Tornadoes and flooding dominate

Tornado risk reaches 71.53 in Fayette County, the highest hazard in the county and significantly above state norms. Flood risk follows at 59.16, creating a dual threat that residents should actively prepare for with proper emergency plans.

Get flood and storm coverage now

Fayette residents should prioritize comprehensive homeowners insurance that explicitly covers tornado damage and wind events, plus separate flood insurance through the National Flood Insurance Program. Given tornado risk scores above 70, a reinforced safe room or basement shelter could save lives during severe weather events.

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

Preparedness Guide

What to Prepare for in Fayette County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    72th percentile
  2. #2
    FloodPrepare
    59th percentile
  3. #3
    EarthquakePrepare
    19th percentile

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

Risk Advisory: Fayette County

Risk Verdict

Fayette County's FEMA risk score places it at the 51th percentile nationally, indicating lower-than-typical exposure for a U.S. county. A moderate composite score often means one or two hazard categories are doing the heavy lifting — knowing which ones matters for preparation.

Hazard Breakdown

Tornado risk is Fayette County's dominant natural hazard, ranked at the 72th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 59th percentile nationally. Additional tracked hazards include earthquake (19th percentile), hurricane (17th percentile), wildfire (14th percentile).

Preparedness Context

Tornado exposure at the 72th percentile nationally makes Fayette County a county where a battery-powered weather radio — not just smartphone apps — is a worthwhile household investment, given that mobile networks often fail during severe storms. The secondary flood hazard at the 59th percentile nationally adds seasonal complexity to Fayette County's preparedness calendar, since flood and tornado risk often peak at different points in the year. In Fayette County, tornado watches indicate favorable atmospheric conditions while warnings mean rotation has been detected — households benefit from understanding this distinction so they shelter immediately on a warning, not after seeking visual confirmation.

Regional Context

The Iowa county average is 11.2 composite points below Fayette County's score, a gap that reflects the county's elevated position in the state's hazard distribution.

Is your household prepared for Fayette 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 Fayette County, IA?
Fayette County has a FEMA National Risk Index rating of Relatively Low, placing it in the 51th 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 Fayette County?
Fayette County is evaluated for five major natural hazard types: tornado (72th percentile), flooding (59th percentile), earthquake (19th percentile), hurricane (17th percentile), wildfire (14th percentile). The highest-risk hazard is tornado at the 72th 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 Fayette County risk compare to the Iowa average?
Fayette County's composite risk percentile is 51th, compared to the Iowa state average of 40th percentile. The state's overall risk rating is Very Low. This means Fayette County faces higher natural disaster risk than the typical county in Iowa.
Is Fayette County at risk for tornado?
Yes, Fayette County's tornado risk is at the 72th percentile nationally. This is above the national median. For flooding specifically, Fayette County is at the 59th 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 Fayette County higher risk than average?
Fayette County's composite risk score of 51th percentile is above the Iowa state average of 40th percentile. This elevated risk is driven by tornado exposure (72th percentile), along with flooding 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.