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

Madison County Disaster Risk

Madison County, Missouri

FEMA Risk Rating

Relatively Low

National Percentile

51th

of 3,144 counties

State Rank

#62

of 115 (1 = highest risk)

Flood Risk

54th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 54% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 30% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 52% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 81% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 34% of US counties

Risk Overview

About Natural Disaster Risk in Madison County, Missouri

Madison County faces moderate earthquake risk

With a composite risk score of 50.86, Madison County ranks as relatively low but sits right at Missouri's state average of 50.56. The county's risk profile is heavily shaped by exceptionally high earthquake exposure at 81.33—among the highest in the state.

Average risk, extreme earthquake exposure

Madison County's overall score of 50.86 mirrors Missouri's state average, but its earthquake risk of 81.33 places it among the state's most seismically vulnerable counties. This makes it a critical area for earthquake preparedness despite average performance in other hazard categories.

Higher earthquake risk than neighbors

Madison County's earthquake exposure at 81.33 far exceeds nearby Lincoln County (77.80) and all other regional counties, making it a seismic hotspot. Its overall score of 50.86 sits between Marion County (47.87) and Lincoln County (67.08).

Earthquakes dominate; hurricanes unexpected

Earthquake risk at 81.33 is Madison County's defining hazard, reflecting its location near seismic zones. Hurricane risk at 33.71 is surprisingly elevated, while flood (54.29) and tornado (51.91) risks remain moderate.

Earthquake insurance is essential

Madison County residents must prioritize earthquake insurance—this hazard towers above others and standard homeowners policies exclude it entirely. Additionally, secure tall furniture, brace water heaters, and ensure your foundation meets modern seismic building standards.

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
    81th percentile
  2. #2
    FloodPrepare
    54th percentile
  3. #3
    TornadoPrepare
    52th percentile

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

Risk Advisory: Madison County

Risk Verdict

Natural hazard pressure in Madison County is below the national midpoint, with a composite score at the 51th percentile. Proactive emergency planning and awareness of the specific hazards driving Madison County's score can meaningfully reduce household risk.

Hazard Breakdown

Earthquake risk is Madison County's dominant natural hazard, ranked at the 81th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 54th percentile nationally. Additional tracked hazards include tornado (52th percentile), hurricane (34th percentile), wildfire (30th percentile).

Preparedness Context

Earthquake exposure at the 81th percentile nationally puts Madison County in a zone where utilities — gas, water, electrical — are the most common post-quake hazard. Knowing how to shut off the main gas valve is an important household skill to develop before an event occurs. Flood at the 54th percentile nationally is a separate hazard dimension for Madison County that requires different protective strategies from earthquake preparedness. Madison County households benefit from keeping shoes and a flashlight near the bed — post-earthquake navigation through debris in the dark is a common cause of secondary injury. This low-cost step has outsized protective value.

Regional Context

Madison County's risk score is broadly comparable to the Missouri county average, with a 0.3-point gap that places the county near the center of the state's hazard distribution.

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, MO?
Madison County has a FEMA National Risk Index rating of Relatively Low, placing it in the 51th 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 (81th percentile), flooding (54th percentile), tornado (52th percentile), hurricane (34th percentile), wildfire (30th percentile). The highest-risk hazard is earthquake at the 81th 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 Missouri average?
Madison County's composite risk percentile is 51th, compared to the Missouri state average of 51th percentile. The state's overall risk rating is Relatively Low. This means Madison County faces higher natural disaster risk than the typical county in Missouri.
Is Madison County at risk for earthquake?
Yes, Madison County's earthquake risk is at the 81th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Madison County is at the 54th 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 Madison County higher risk than average?
Madison County's composite risk score of 51th percentile is above the Missouri state average of 51th percentile. This elevated risk is driven by earthquake exposure (81th percentile), along with flooding and tornado 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.