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

Thomas County Disaster Risk

Thomas County, Kansas

FEMA Risk Rating

Very Low

National Percentile

9th

of 3,144 counties

State Rank

#86

of 105 (1 = highest risk)

Flood Risk

6th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 6% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 15% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 37% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 17% of US counties

Risk Overview

About Natural Disaster Risk in Thomas County, Kansas

Thomas County faces very low national risk

With a composite risk score of 9.45, Thomas County sits well below the national average and carries a "Very Low" rating for natural disasters. This means your county experiences fewer and less severe hazard exposures than most U.S. counties.

Among Kansas's safest counties

Thomas County's score of 9.45 ranks it far below Kansas's state average of 29.89, placing it in the lower-risk tier statewide. You're in one of the more protected corners of Kansas when it comes to composite disaster risk.

Safer than nearby Wallace County

Thomas County (9.45) edges out its western neighbor Wallace County (1.18) for lowest overall risk, though both remain very low. Your risk profile is comparable to other northwest Kansas plains counties.

Tornadoes your primary weather concern

Tornado risk (36.51) is Thomas County's dominant hazard, though still moderate in absolute terms. Earthquake risk (17.46) and wildfire risk (15.39) round out your secondary concerns, each well-managed with proper preparation.

Tornado insurance protects your investment

Given tornado risk of 36.51, ensure your homeowners policy covers wind damage and consider a separate rider for additional protection. Check your policy annually and maintain a home disaster kit with battery-powered radio and first-aid supplies.

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

Preparedness Guide

What to Prepare for in Thomas County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    37th percentile
  2. #2
    EarthquakePrepare
    17th percentile
  3. #3
    WildfirePrepare
    15th percentile

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

Risk Advisory: Thomas County

Risk Verdict

Thomas County carries a low natural disaster risk burden, scoring at the 9th percentile under the FEMA National Risk Index. Even at the 9th percentile, Thomas County's composite score reflects real hazard exposure categories — knowing which ones apply locally enables targeted, efficient household preparedness.

Hazard Breakdown

Tornado risk is Thomas County's dominant natural hazard, ranked at the 37th percentile nationally under FEMA's National Risk Index. Earthquake ranks second at the 17th percentile nationally. Additional tracked hazards include wildfire (15th percentile), flood (6th percentile).

Preparedness Context

Thomas County's primary hazard, tornado, ranks at the 37th percentile nationally. In Thomas County, mobile homes and manufactured housing face significantly higher tornado risk than site-built structures; residents in these homes should identify the nearest permanent community shelter in advance. The secondary earthquake hazard at the 17th percentile nationally adds seasonal complexity to Thomas County's preparedness calendar, since earthquake and tornado risk often peak at different points in the year. The highest-risk window for tornado fatalities is overnight, when Thomas County residents may be asleep. A NOAA weather radio with overnight alert capability is the single most impactful low-cost preparedness step available to Thomas County households.

Regional Context

Compared to the Kansas county average, Thomas County's composite score runs 20.4 points lower — a gap that reflects the county's relatively modest hazard profile within its state context.

Is your household prepared for Thomas 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 Thomas County, KS?
Thomas County has a FEMA National Risk Index rating of Very Low, placing it in the 9th 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 Thomas County?
Thomas County is evaluated for five major natural hazard types: tornado (37th percentile), earthquake (17th percentile), wildfire (15th percentile), flooding (6th percentile). The highest-risk hazard is tornado at the 37th 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 Thomas County risk compare to the Kansas average?
Thomas County's composite risk percentile is 9th, compared to the Kansas state average of 30th percentile. The state's overall risk rating is Very Low. This means Thomas County faces lower natural disaster risk than the typical county in Kansas.
Is Thomas County at risk for tornado?
Yes, Thomas County's tornado risk is at the 37th percentile nationally. This is below the national median, indicating relatively lower exposure. For flooding specifically, Thomas County is at the 6th 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 Thomas County a safe place to live?
Thomas County's composite risk score of 9th percentile is below the Kansas state average of 30th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is tornado at the 37th 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.