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

Cerro Gordo County Disaster Risk

Cerro Gordo County, Iowa

FEMA Risk Rating

Relatively Low

National Percentile

70th

of 3,144 counties

State Rank

#8

of 99 (1 = highest risk)

Flood Risk

69th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 69% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 27% of US counties

Tornado

Tornado and severe thunderstorm risk

Moderate

Higher than 89% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 24% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 12% of US counties

Risk Overview

About Natural Disaster Risk in Cerro Gordo County, Iowa

Cerro Gordo faces above-average disaster risk

With a composite risk score of 69.59, Cerro Gordo ranks as relatively low risk nationally, but sits well above Iowa's state average of 39.68. This county experiences more frequent and intense natural hazards than most of the state, driven primarily by tornado exposure.

Among Iowa's riskiest counties

Cerro Gordo's 69.59 score places it in the upper tier of Iowa's 99 counties by hazard exposure. Only a handful of Iowa counties face comparable composite risk levels, making this one of the state's more vulnerable regions.

Higher risk than nearby counties

Cerro Gordo's composite score of 69.59 significantly exceeds those of neighboring Chickasaw (31.74) and Worth counties. Its tornado and flood risks drive this distinction, marking it as notably more hazard-exposed than its immediate regional peers.

Tornado and flood risks dominate

Tornado risk reaches 89.34 in Cerro Gordo—among the highest in Iowa—while flood risk scores 68.96, reflecting the county's location in a climatically active region. Wildfire (26.65) and earthquake (24.24) risks remain minimal by comparison.

Prioritize tornado and flood coverage

Standard homeowners policies exclude tornado and flood damage, so Cerro Gordo residents should secure separate windstorm and flood insurance immediately. A safe room or basement shelter offers critical protection during the tornado season that affects this county regularly.

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

Preparedness Guide

What to Prepare for in Cerro Gordo County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    89th percentile
  2. #2
    FloodPrepare
    69th percentile
  3. #3
    WildfirePrepare
    27th percentile

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

Risk Advisory: Cerro Gordo County

Risk Verdict

Cerro Gordo County has a below-average natural disaster risk profile, scoring at the 70th percentile nationally under FEMA's National Risk Index. Households in Cerro Gordo County benefit from knowing which individual hazard types — flood, wildfire, tornado, or hurricane — are the primary contributors.

Hazard Breakdown

Tornado risk is Cerro Gordo County's dominant natural hazard, ranked at the 89th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 69th percentile nationally. Additional tracked hazards include wildfire (27th percentile), earthquake (24th percentile), hurricane (12th percentile).

Preparedness Context

Tornado risk is Cerro Gordo County's top-ranked natural hazard at the 89th percentile nationally. For Cerro Gordo County households, the most protective action available is identifying a reinforced interior room on the lowest floor — a bathroom, closet, or central hallway away from windows. Alongside tornado exposure, flood at the 69th percentile nationally means Cerro Gordo County households face multi-hazard severe-weather seasons that benefit from a single integrated emergency plan covering both threats. A battery-powered NOAA All Hazards weather radio with an auto-alert tone is the highest-leverage single item for tornado preparedness in Cerro Gordo County, since it delivers warnings even when power is out and phone networks are congested.

Regional Context

Cerro Gordo County's composite risk score sits 29.9 points above the Iowa county average, placing it among the more hazard-exposed counties in the state.

Is your household prepared for Cerro Gordo 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 Cerro Gordo County, IA?
Cerro Gordo County has a FEMA National Risk Index rating of Relatively Low, placing it in the 70th 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 Cerro Gordo County?
Cerro Gordo County is evaluated for five major natural hazard types: tornado (89th percentile), flooding (69th percentile), wildfire (27th percentile), earthquake (24th percentile), hurricane (12th percentile). The highest-risk hazard is tornado at the 89th 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 Cerro Gordo County risk compare to the Iowa average?
Cerro Gordo County's composite risk percentile is 70th, compared to the Iowa state average of 40th percentile. The state's overall risk rating is Very Low. This means Cerro Gordo County faces higher natural disaster risk than the typical county in Iowa.
Is Cerro Gordo County at risk for tornado?
Yes, Cerro Gordo County's tornado risk is at the 89th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Cerro Gordo County is at the 69th 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 Cerro Gordo County higher risk than average?
Cerro Gordo County's composite risk score of 70th percentile is above the Iowa state average of 40th percentile. This elevated risk is driven by tornado exposure (89th 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.