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

Warren County Disaster Risk

Warren County, Missouri

FEMA Risk Rating

Relatively Low

National Percentile

55th

of 3,144 counties

State Rank

#49

of 115 (1 = highest risk)

Flood Risk

61th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 61% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 57% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 55% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 73% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 10% of US counties

Risk Overview

About Natural Disaster Risk in Warren County, Missouri

Warren County near-average national risk

Warren County's composite risk score of 55.34 earns a Relatively Low rating and falls slightly above the national average. This modest elevation suggests Warren residents face somewhat greater cumulative natural disaster exposure than typical Americans, though far from extreme.

Slightly elevated for Missouri

Warren County's 55.34 score exceeds Missouri's state average of 50.56, positioning it in the mid-to-upper tier of statewide risk. The county's location on the border between low-risk western and higher-risk central Missouri creates a blended hazard profile.

Moderate risk in central corridor

Warren County (55.34) sits between lower-risk Vernon (45.96) to the west and higher-risk Washington (67.78) to the south and east. The county's position reflects the transition zone where central Missouri's hazard intensification begins to mount.

Earthquakes and floods lead concerns

Earthquake risk reaches 73.28 and flood risk 61.20, the county's dominant hazards and both well above state averages, reflecting central Missouri's seismic and hydrologic exposure. Tornado (55.25) and wildfire (56.55) risks are moderate, making earthquake resilience a distinctive planning priority.

Earthquake coverage essential

Warren County's 73.28 earthquake score makes a separate earthquake endorsement or policy a necessity, not optional coverage. Combine this with standard homeowners coverage and flood insurance for properties in or near river corridors to address the county's dual hazard exposure.

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

Preparedness Guide

What to Prepare for in Warren County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    73th percentile
  2. #2
    FloodPrepare
    61th percentile
  3. #3
    WildfirePrepare
    57th percentile

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

Risk Advisory: Warren County

Risk Verdict

With a national percentile rank of 55th, Warren County faces below-average hazard exposure relative to U.S. counties as a whole. Above-average risk does not mean imminent danger; it signals that informed, hazard-specific preparedness has high value here.

Hazard Breakdown

Earthquake risk is Warren County's dominant natural hazard, ranked at the 73th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 61th percentile nationally. Additional tracked hazards include wildfire (57th percentile), tornado (55th percentile), hurricane (10th percentile).

Preparedness Context

At the 73th percentile nationally for earthquake exposure, Warren County households benefit from practicing Drop, Cover, and Hold On — the protocol that minimizes injury during shaking. Getting under a sturdy table or desk and holding on until shaking stops is the key action. Flood at the 61th percentile nationally is a separate hazard dimension for Warren County that requires different protective strategies from earthquake preparedness. Building age matters for earthquake risk in Warren County: structures built before local seismic code adoption are statistically more vulnerable. Contacting the local building department about retrofit programs can reveal whether your structure qualifies for mitigation assistance.

Regional Context

Warren County tracks the Missouri county average closely, sitting 4.8 composite points above the state mean — neither a standout high-risk nor low-risk county within Missouri.

Is your household prepared for Warren 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 Warren County, MO?
Warren County has a FEMA National Risk Index rating of Relatively Low, placing it in the 55th 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 Warren County?
Warren County is evaluated for five major natural hazard types: earthquake (73th percentile), flooding (61th percentile), wildfire (57th percentile), tornado (55th percentile), hurricane (10th percentile). The highest-risk hazard is earthquake at the 73th 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 Warren County risk compare to the Missouri average?
Warren County's composite risk percentile is 55th, compared to the Missouri state average of 51th percentile. The state's overall risk rating is Relatively Low. This means Warren County faces higher natural disaster risk than the typical county in Missouri.
Is Warren County at risk for earthquake?
Yes, Warren County's earthquake risk is at the 73th percentile nationally. This is above the national median. For flooding specifically, Warren County is at the 61th 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 Warren County higher risk than average?
Warren County's composite risk score of 55th percentile is above the Missouri state average of 51th percentile. This elevated risk is driven by earthquake exposure (73th percentile), along with flooding and wildfire 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.