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

Winneshiek County Disaster Risk

Winneshiek County, Iowa

FEMA Risk Rating

Very Low

National Percentile

36th

of 3,144 counties

State Rank

#48

of 99 (1 = highest risk)

Flood Risk

47th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 47% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 22% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 61% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 11% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 12% of US counties

Risk Overview

About Natural Disaster Risk in Winneshiek County, Iowa

Winneshiek's risk remains below U.S. average

Winneshiek County scores 36.20 and rates Very Low, placing it 9% below the national average. The county experiences fewer multi-hazard exposures than typical American communities.

Among Iowa's lower-risk counties

Winneshiek scores 36.20, slightly below Iowa's state average of 39.68, ranking in the state's safer half. The county's risk profile reflects moderate exposure balanced across most hazard types.

Safer than Webster, comparable to Warren

Winneshiek (36.20) significantly outperforms Webster (59.99) and closely matches Warren (36.10) and Van Buren (33.62). The county ranks among northeast Iowa's safer communities.

Tornadoes and floods lead hazard list

Tornado risk reaches 60.81 in Winneshiek, making it the county's primary concern, while flood risk at 47.46 ranks second. Both scores remain close to state averages, reflecting the county's moderate overall exposure.

Comprehensive storm and flood coverage advised

Winneshiek homeowners should prioritize wind and hail insurance for tornado protection, then evaluate flood coverage given the moderate 47.46 flood risk score. Standard policies with these riders offer solid protection for your county's risk profile.

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

Preparedness Guide

What to Prepare for in Winneshiek County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    61th percentile
  2. #2
    FloodPrepare
    47th percentile
  3. #3
    WildfirePrepare
    22th percentile

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

Risk Advisory: Winneshiek County

Risk Verdict

Compared to the nation's 3,144 counties, Winneshiek County ranks at the 36th percentile for natural disaster risk — toward the safer end of the spectrum. The 36th percentile national ranking is one lens; Winneshiek County residents also benefit from reviewing which specific hazard types drive the county's composite score and preparing accordingly.

Hazard Breakdown

Tornado risk is Winneshiek County's dominant natural hazard, ranked at the 61th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 47th percentile nationally. Additional tracked hazards include wildfire (22th percentile), hurricane (12th percentile), earthquake (11th percentile).

Preparedness Context

Tornado exposure at the 61th percentile nationally makes Winneshiek 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 47th percentile nationally adds seasonal complexity to Winneshiek County's preparedness calendar, since flood and tornado risk often peak at different points in the year. In Winneshiek 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

Winneshiek County sits within 3.5 composite points of the Iowa state average, suggesting the county's hazard exposure is representative of the broader regional pattern.

Is your household prepared for Winneshiek 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 Winneshiek County, IA?
Winneshiek County has a FEMA National Risk Index rating of Very Low, placing it in the 36th 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 Winneshiek County?
Winneshiek County is evaluated for five major natural hazard types: tornado (61th percentile), flooding (47th percentile), wildfire (22th percentile), hurricane (12th percentile), earthquake (11th percentile). The highest-risk hazard is tornado at the 61th 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 Winneshiek County risk compare to the Iowa average?
Winneshiek County's composite risk percentile is 36th, compared to the Iowa state average of 40th percentile. The state's overall risk rating is Very Low. This means Winneshiek County faces lower natural disaster risk than the typical county in Iowa.
Is Winneshiek County at risk for tornado?
Yes, Winneshiek County's tornado risk is at the 61th percentile nationally. This is above the national median. For flooding specifically, Winneshiek County is at the 47th 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 Winneshiek County a safe place to live?
Winneshiek County's composite risk score of 36th percentile is below the Iowa state average of 40th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is tornado at the 61th 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.