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

Greene County Disaster Risk

Greene County, Missouri

FEMA Risk Rating

Relatively Moderate

National Percentile

90th

of 3,144 counties

State Rank

#6

of 115 (1 = highest risk)

Flood Risk

89th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 89% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 72% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively High

Higher than 95% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 93% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 41% of US counties

Risk Overview

About Natural Disaster Risk in Greene County, Missouri

Greene County faces the state's highest risks

At 90.08, Greene County's composite risk score is among the nation's most elevated and places it in the "relatively moderate" category. Extreme exposures to floods (88.80), tornadoes (94.88), earthquakes (92.91), and wildfires (72.42) make this Missouri's riskiest county overall.

Missouri's highest-risk county

Greene County's 90.08 composite score is by far the highest in Missouri, nearly 40 points above the state average of 50.56. No other Missouri county faces such a comprehensive and severe multi-hazard profile.

Dramatically riskier than surrounding areas

Neighboring counties score substantially lower: Dent County at 52.54 and Douglas County at 23.70. Greene County's positioning in south-central Missouri at the intersection of multiple hazard zones creates this exceptional vulnerability.

Tornadoes, floods, earthquakes converge here

Tornado risk (94.88), flood risk (88.80), and earthquake risk (92.91) dominate Greene County's hazard profile, each ranking among Missouri's highest. Spring tornado season, frequent flash flooding, and proximity to the Ozark seismic zone create a year-round threat environment.

Comprehensive multi-hazard insurance required

Flood insurance, earthquake insurance, and robust wind/tornado coverage are all essential in Greene County, not optional add-ons. Invest in safe-room construction or reinforcement, keep supplies stocked for both flooding and earthquake scenarios, and review all three policies annually with your agent.

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

Preparedness Guide

What to Prepare for in Greene County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    95th percentile
  2. #2
    EarthquakePrepare
    93th percentile
  3. #3
    FloodPrepare
    89th percentile

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

Risk Advisory: Greene County

Risk Verdict

Natural hazard risk in Greene County is higher than the majority of U.S. counties, with a national composite rank of 90th. Greene County's elevated composite score reflects cumulative multi-hazard exposure; households should prepare for the county's two or three primary hazard types.

Hazard Breakdown

Tornado risk is Greene County's dominant natural hazard, ranked at the 95th percentile nationally under FEMA's National Risk Index. Earthquake ranks second at the 93th percentile nationally. Additional tracked hazards include flood (89th percentile), wildfire (72th percentile), hurricane (41th percentile).

Preparedness Context

Ranked at the 95th percentile nationally for tornado risk, Greene County is in a zone where storm shelters have the highest per-dollar protective value of any mitigation investment. Greene County's county shelter map is typically available through the local emergency management office. Alongside tornado exposure, earthquake at the 93th percentile nationally means Greene County households face multi-hazard severe-weather seasons that benefit from a single integrated emergency plan covering both threats. Greene County residents can check the county's emergency management website for community shelter locations nearest their address — a step worth completing now, not during a warning.

Regional Context

A composite score 39.5 points above the Missouri state average puts Greene County in a higher-risk category than most counties in the state.

Is your household prepared for Greene 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 Greene County, MO?
Greene County has a FEMA National Risk Index rating of Relatively Moderate, placing it in the 90th 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 Greene County?
Greene County is evaluated for five major natural hazard types: tornado (95th percentile), earthquake (93th percentile), flooding (89th percentile), wildfire (72th percentile), hurricane (41th percentile). The highest-risk hazard is tornado at the 95th 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 Greene County risk compare to the Missouri average?
Greene County's composite risk percentile is 90th, compared to the Missouri state average of 51th percentile. The state's overall risk rating is Relatively Low. This means Greene County faces higher natural disaster risk than the typical county in Missouri.
Is Greene County at risk for tornado?
Yes, Greene County's tornado risk is at the 95th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Greene County is at the 89th 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 Greene County higher risk than average?
Greene County's composite risk score of 90th percentile is above the Missouri state average of 51th percentile. This elevated risk is driven by tornado exposure (95th percentile), along with earthquake and flooding and wildfire 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.