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

Franklin County Disaster Risk

Franklin County, Iowa

FEMA Risk Rating

Very Low

National Percentile

22th

of 3,144 counties

State Rank

#82

of 99 (1 = highest risk)

Flood Risk

14th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 14% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 6% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 50% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 8% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 12% of US counties

Risk Overview

About Natural Disaster Risk in Franklin County, Iowa

Franklin County faces minimal US risk

Franklin County's composite risk score of 21.95 places it well below the national average, earning a "Very Low" risk rating. The county ranks among safer American communities for natural disaster exposure, though local tornado activity remains notable.

Iowa's safer counties

Franklin County scores 21.95 compared to Iowa's 39.68 state average, placing it in the safest tier statewide. The county enjoys significantly lower natural disaster risk than most of its peers across Iowa.

One of the region's safest areas

Franklin County's 21.95 score ranks it as one of the lowest-risk counties in northeastern Iowa, well below Fayette (50.89) and Floyd (47.74) counties. Only Grundy County (13.14) and Fremont County (14.98) register lower risk in the immediate region.

Tornado risk leads other hazards

Despite low overall risk, tornado events score 50.29 in Franklin County, making them the dominant natural hazard residents face. Flood risk at 13.96 and wildfire risk at just 6.11 round out a relatively benign hazard profile compared to most US counties.

Focus on tornado preparedness

Franklin County residents should maintain standard homeowners insurance and focus tornado preparedness efforts on having a safe room plan and emergency kit. Flood risk is minimal, so extensive flood insurance may not be necessary unless property sits in a mapped floodplain.

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

Preparedness Guide

What to Prepare for in Franklin County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    50th percentile
  2. #2
    FloodPrepare
    14th percentile
  3. #3
    HurricanePrepare
    12th percentile

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

Risk Advisory: Franklin County

Risk Verdict

Franklin County sits in the lower tier of U.S. counties for natural disaster exposure, ranked at the 22th percentile nationally. At the 22th percentile nationally, Franklin County's natural hazard profile is comparatively favorable — community resilience is reinforced when individual households maintain a reviewed emergency plan.

Hazard Breakdown

Tornado risk is Franklin County's dominant natural hazard, ranked at the 50th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 14th percentile nationally. Additional tracked hazards include hurricane (12th percentile), earthquake (8th percentile), wildfire (6th percentile).

Preparedness Context

At the 50th percentile nationally for tornado risk, Franklin County households benefit most from a reliable alert system — a NOAA weather radio that activates during overnight hours when residents may not be checking smartphone alerts. Alongside tornado exposure, flood at the 14th percentile nationally means Franklin County households face multi-hazard severe-weather seasons that benefit from a single integrated emergency plan covering both threats. For Franklin County households, a pre-decided family shelter plan — who goes where, how children are retrieved from school during a warning, and a neighborhood meet-up point if phones fail — provides real protection that no supply kit alone can replicate.

Regional Context

Franklin County falls 17.7 points below Iowa's typical county risk level, making it one of the safer natural-hazard environments in the state.

Is your household prepared for Franklin 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 Franklin County, IA?
Franklin County has a FEMA National Risk Index rating of Very Low, placing it in the 22th 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 Franklin County?
Franklin County is evaluated for five major natural hazard types: tornado (50th percentile), flooding (14th percentile), hurricane (12th percentile), earthquake (8th percentile), wildfire (6th percentile). The highest-risk hazard is tornado at the 50th 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 Franklin County risk compare to the Iowa average?
Franklin County's composite risk percentile is 22th, compared to the Iowa state average of 40th percentile. The state's overall risk rating is Very Low. This means Franklin County faces lower natural disaster risk than the typical county in Iowa.
Is Franklin County at risk for tornado?
Yes, Franklin County's tornado risk is at the 50th percentile nationally. This is above the national median. For flooding specifically, Franklin County is at the 14th 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 Franklin County a safe place to live?
Franklin County's composite risk score of 22th 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 50th 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.