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

Hancock County Disaster Risk

Hancock County, Iowa

FEMA Risk Rating

Very Low

National Percentile

29th

of 3,144 counties

State Rank

#68

of 99 (1 = highest risk)

Flood Risk

22th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 22% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 7% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 51% 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 0% of US counties

Risk Overview

About Natural Disaster Risk in Hancock County, Iowa

Hancock: Well Below National Risk

Hancock County's composite risk score of 28.79 puts it in the Very Low category, significantly safer than the national average. This score reflects relatively modest natural disaster threats across most hazard types, making it one of Iowa's lower-risk communities.

Among Iowa's Safest Counties

Hancock ranks favorably within Iowa, where the state average composite risk score is 39.68. The county's 28.79 score places it well below the state median, indicating lower-than-typical exposure to natural disasters for the region.

Comparing Risk With Nearby Counties

Hancock's neighbors show mixed risk profiles: Howard County (15.59) is even safer, while Hardin County (58.40) faces substantially higher tornado and flood risks. Hancock sits in the middle-to-low range of its regional peers, with notably lower flood exposure than Harrison County.

Tornado Risk Dominates Hancock's Hazards

Tornado risk is Hancock's primary concern, scoring 50.51—the county's most significant natural hazard threat. Flood risk (21.60) and wildfire risk (6.58) pose much lower dangers, while earthquake and hurricane risks are minimal to nonexistent.

Secure Your Home Against Tornadoes

Hancock residents should prioritize tornado coverage through homeowners or specialized policies, given the county's moderate tornado exposure. Standard homeowners insurance typically covers wind damage, but verify your specific coverage limits and consider a safe room or shelter to maximize family protection.

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

Preparedness Guide

What to Prepare for in Hancock County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    51th percentile
  2. #2
    FloodPrepare
    22th percentile
  3. #3
    EarthquakePrepare
    11th percentile

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

Risk Advisory: Hancock County

Risk Verdict

Natural disaster exposure in Hancock County is lower than roughly three-quarters of U.S. counties, with a composite score at the 29th percentile. Hancock County residents can take confidence from a 29th percentile ranking, but even lower-risk counties benefit from a practiced household communication plan and awareness of the specific hazards listed above.

Hazard Breakdown

Tornado risk is Hancock County's dominant natural hazard, ranked at the 51th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 22th percentile nationally. Additional tracked hazards include earthquake (11th percentile), wildfire (7th percentile), hurricane (0th percentile).

Preparedness Context

Ranked at the 51th percentile nationally for tornado risk, Hancock County is in a zone where storm shelters have the highest per-dollar protective value of any mitigation investment. Hancock County's county shelter map is typically available through the local emergency management office. Alongside tornado exposure, flood at the 22th percentile nationally means Hancock County households face multi-hazard severe-weather seasons that benefit from a single integrated emergency plan covering both threats. Hancock County residents can check the county's emergency management website for community shelter locations nearest their address — a step worth completing now, not during a warning.

Regional Context

Hancock County is 10.9 composite risk points below the Iowa state mean, meaning most other Iowa counties face higher natural hazard exposure.

Is your household prepared for Hancock 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 Hancock County, IA?
Hancock County has a FEMA National Risk Index rating of Very Low, placing it in the 29th 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 Hancock County?
Hancock County is evaluated for five major natural hazard types: tornado (51th percentile), flooding (22th percentile), earthquake (11th percentile), wildfire (7th percentile), hurricane (0th percentile). The highest-risk hazard is tornado at the 51th 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 Hancock County risk compare to the Iowa average?
Hancock County's composite risk percentile is 29th, compared to the Iowa state average of 40th percentile. The state's overall risk rating is Very Low. This means Hancock County faces lower natural disaster risk than the typical county in Iowa.
Is Hancock County at risk for tornado?
Yes, Hancock County's tornado risk is at the 51th percentile nationally. This is above the national median. For flooding specifically, Hancock County is at the 22th 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 Hancock County a safe place to live?
Hancock County's composite risk score of 29th 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 51th 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.