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

Madison County Disaster Risk

Madison County, Ohio

FEMA Risk Rating

Very Low

National Percentile

25th

of 3,144 counties

State Rank

#78

of 88 (1 = highest risk)

Flood Risk

41th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 41% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 3% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 44% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 56% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 22% of US counties

Risk Overview

About Natural Disaster Risk in Madison County, Ohio

Madison County's natural disaster risk

Madison County scores 24.90 on the composite natural disaster risk scale, earning a Very Low risk rating—well below Ohio's 55.03 state average and the national baseline. This puts the county in the lower tier for hazard exposure across all major disaster types. Residents here face substantially less overall risk than most of their state neighbors.

One of Ohio's safest counties

Madison County ranks among the lowest-risk counties in Ohio, with its 24.90 composite score placing it well beneath the 55.03 state average. Only a handful of Ohio counties experience lower composite risk profiles. This favorable position reflects both geographic advantages and reduced exposure to the state's most common hazards.

Safer than surrounding counties

Madison County's 24.90 risk score outperforms most adjacent counties, particularly Marion County (61.10) and Mercer County (31.65) to the north. Even when compared to Meigs County (52.96) to the east, Madison County maintains a significantly lower risk profile. Its geography provides natural protection that neighboring regions don't share.

Earthquakes and tornadoes pose most threat

Earthquake risk (55.57) and tornado risk (43.92) represent Madison County's most significant hazards, though both remain below state averages. Flood risk scores 41.48, while wildfire risk remains minimal at 2.86. The county's modest hazard exposure means most residents can focus on standard weather preparedness rather than specialized disaster planning.

Basic coverage meets Madison County needs

Standard homeowners insurance covering wind and hail damage addresses Madison County's primary weather threats from tornadoes and severe storms. While earthquake insurance is optional, the 55.57 earthquake risk score suggests it's worth evaluating with your agent. Flood insurance is generally affordable here given the 41.48 flood risk, making it a practical addition to any policy.

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

Preparedness Guide

What to Prepare for in Madison County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    56th percentile
  2. #2
    TornadoPrepare
    44th percentile
  3. #3
    FloodPrepare
    41th percentile

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

Risk Advisory: Madison County

Risk Verdict

At the 25th percentile nationally, Madison County experiences relatively limited natural hazard pressure compared to most of the country. At the 25th percentile, Madison County's risk profile is among the more manageable in the country — the hazard-specific breakdown above shows where any remaining preparedness focus is best directed.

Hazard Breakdown

Earthquake risk is Madison County's dominant natural hazard, ranked at the 56th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 44th percentile nationally. Additional tracked hazards include flood (41th percentile), hurricane (22th percentile), wildfire (3th percentile).

Preparedness Context

Madison County ranks at the 56th percentile nationally for earthquake risk. Unlike most natural hazards, earthquakes provide no advance warning; preparedness here means structural adjustments and a practiced response, not alert monitoring. The county's tornado risk at the 44th percentile nationally is a seasonal consideration alongside the year-round earthquake threat, requiring awareness of both hazard types. For earthquake preparedness, Madison County's county emergency management office often maintains a list of community water supply points, Red Cross shelter locations, and post-quake assistance programs — useful resources to identify before an event occurs.

Regional Context

A composite score 30.1 points below the Ohio state average puts Madison County in a better-than-typical position relative to neighboring counties.

Is your household prepared for Madison 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 Madison County, OH?
Madison 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 Madison County?
Madison County is evaluated for five major natural hazard types: earthquake (56th percentile), tornado (44th percentile), flooding (41th percentile), hurricane (22th percentile), wildfire (3th percentile). The highest-risk hazard is earthquake at the 56th 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 Madison County risk compare to the Ohio average?
Madison County's composite risk percentile is 25th, compared to the Ohio state average of 55th percentile. The state's overall risk rating is Relatively Low. This means Madison County faces lower natural disaster risk than the typical county in Ohio.
Is Madison County at risk for earthquake?
Yes, Madison County's earthquake risk is at the 56th percentile nationally. This is above the national median. For flooding specifically, Madison County is at the 41th 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 Madison County a safe place to live?
Madison County's composite risk score of 25th percentile is below the Ohio state average of 55th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is earthquake at the 56th 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.