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

Monona County Disaster Risk

Monona County, Iowa

FEMA Risk Rating

Very Low

National Percentile

25th

of 3,144 counties

State Rank

#75

of 99 (1 = highest risk)

Flood Risk

25th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 25% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 63% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 58% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 14% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 0% of US counties

Risk Overview

About Natural Disaster Risk in Monona County, Iowa

Monona County well below national risk

Monona County's composite risk score of 25.10 ranks as Very Low, well below the national average. Your county benefits from geography that limits exposure to multiple major disaster types.

Safer than average for Iowa

At 25.10, Monona County sits well below Iowa's state average of 39.68. You rank among Iowa's lower-risk counties for overall natural disaster exposure.

Comparable to nearby counties

Monona County's 25.10 score runs higher than Mills County (18.48) but lower than Mitchell County (37.69). Your risk profile is typical for northwestern Iowa's geographic and weather patterns.

Tornados and wildfires are primary concerns

Tornados at 57.95 and wildfires at 63.49 represent Monona County's greatest risks, with both well above state averages. Flood risk (25.03) and earthquake risk (14.03) remain secondary concerns.

Prepare for severe weather and wildfire smoke

Monona County's high wildfire risk (63.49) and tornado risk (57.95) demand a reliable safe room or storm shelter plus defensible landscaping around your home. Review your homeowners policy for wind and hail coverage, and keep emergency supplies accessible.

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

Preparedness Guide

What to Prepare for in Monona County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    63th percentile
  2. #2
    TornadoPrepare
    58th percentile
  3. #3
    FloodPrepare
    25th percentile

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

Risk Advisory: Monona County

Risk Verdict

At the 25th percentile nationally, Monona County experiences relatively limited natural hazard pressure compared to most of the country. Even at the 25th percentile, Monona County's composite score reflects real hazard exposure categories — knowing which ones apply locally enables targeted, efficient household preparedness.

Hazard Breakdown

Wildfire risk is Monona County's dominant natural hazard, ranked at the 63th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 58th percentile nationally. Additional tracked hazards include flood (25th percentile), earthquake (14th percentile), hurricane (0th percentile).

Preparedness Context

Monona County's dominant hazard is wildfire, ranked at the 63th percentile nationally. Maintaining at least 30 feet of lean, clean vegetation around structures in Monona County and keeping gutters clear of debris significantly reduces ignition risk from wind-driven embers. A secondary tornado exposure at the 58th percentile nationally means Monona County residents face hazards from two distinct natural peril categories during different seasons. Monona County's households benefit from reviewing homeowners insurance before fire season, specifically whether the policy covers replacement cost rather than actual cash value, and whether it includes additional living expenses if displacement is required.

Regional Context

A composite score 14.6 points below the Iowa state average puts Monona County in a better-than-typical position relative to neighboring counties.

Is your household prepared for Monona 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 Monona County, IA?
Monona County has a FEMA National Risk Index rating of Very Low, placing it in the 25th 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 Monona County?
Monona County is evaluated for five major natural hazard types: wildfire (63th percentile), tornado (58th percentile), flooding (25th percentile), earthquake (14th percentile), hurricane (0th percentile). The highest-risk hazard is wildfire at the 63th 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 Monona County risk compare to the Iowa average?
Monona County's composite risk percentile is 25th, compared to the Iowa state average of 40th percentile. The state's overall risk rating is Very Low. This means Monona County faces lower natural disaster risk than the typical county in Iowa.
Is Monona County at risk for wildfire?
Yes, Monona County's wildfire risk is at the 63th percentile nationally. This is above the national median. For flooding specifically, Monona County is at the 25th 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 Monona County a safe place to live?
Monona County's composite risk score of 25th 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 wildfire at the 63th 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.