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

Custer County Disaster Risk

Custer County, Oklahoma

FEMA Risk Rating

Relatively Low

National Percentile

62th

of 3,144 counties

State Rank

#36

of 77 (1 = highest risk)

Flood Risk

39th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 39% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 77% of US counties

Tornado

Tornado and severe thunderstorm risk

Moderate

Higher than 91% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 53% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 24% of US counties

Risk Overview

About Natural Disaster Risk in Custer County, Oklahoma

Custer County's risk exceeds U.S. average

Custer County's composite risk score of 62.02 and "Relatively Low" rating place it moderately above the national average for natural disaster exposure. While your county faces elevated threats compared to the typical American county, the "Relatively Low" designation indicates manageable risk for most residents. The county presents above-average but not extreme disaster vulnerability.

Above-average risk within Oklahoma

Custer County's 62.02 composite score runs above Oklahoma's state average of 55.47, ranking it in the upper-middle tier of the state's 77 counties. You face more hazard exposure than most Oklahomans but less than the state's highest-risk counties. This moderate elevation reflects significant but not extreme vulnerability within the Oklahoma context.

Higher risk than Craig and Cotton, lower than Creek

Custer County (62.02) exceeds the risk profiles of nearby Craig County (55.50) and Cotton County (4.90), but falls below Creek County (83.24) and Delaware County (82.67). Among this regional cluster, Custer occupies a middle-upper position. The variation across neighboring counties highlights Custer's moderate-to-elevated standing within the area.

Tornadoes and wildfires are primary threats

Tornado risk (91.32) dominates Custer County's hazard profile, followed by wildfire risk (76.81)—both substantially elevated threats. Earthquake risk (53.24) and hurricane risk (23.86) are secondary concerns, while flood risk (38.71) remains the lowest exposure. The tornado-wildfire combination accounts for most of Custer's above-average composite score.

Tornado and wildfire coverage essential here

Custer County homeowners should prioritize standard insurance coverage for tornado damage and secure separate wildfire protection for their properties. Developing a family tornado safety plan—including a designated shelter area and communication strategy—can save lives during severe weather. Many insurers offer discounts for storm-resistant roof upgrades, making protection upgrades financially sensible.

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

Preparedness Guide

What to Prepare for in Custer County

Top Hazards by Exposure

  1. #1
    TornadoPrepare
    91th percentile
  2. #2
    WildfirePrepare
    77th percentile
  3. #3
    EarthquakePrepare
    53th percentile

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

Risk Advisory: Custer County

Risk Verdict

Custer County sits below the national average for natural disaster exposure, ranking at the 62th percentile across all U.S. counties. Understanding the specific hazards behind Custer County's ranking helps residents prioritize where to direct emergency planning efforts.

Hazard Breakdown

Tornado risk is Custer County's dominant natural hazard, ranked at the 91th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 77th percentile nationally. Additional tracked hazards include earthquake (53th percentile), flood (39th percentile), hurricane (24th percentile).

Preparedness Context

Ranked at the 91th percentile nationally for tornado risk, Custer County is in a zone where storm shelters have the highest per-dollar protective value of any mitigation investment. Custer County's county shelter map is typically available through the local emergency management office. Alongside tornado exposure, wildfire at the 77th percentile nationally means Custer County households face multi-hazard severe-weather seasons that benefit from a single integrated emergency plan covering both threats. Custer 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 6.5 points above the Oklahoma state average puts Custer County in a higher-risk category than most counties in the state.

Is your household prepared for Custer 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 Custer County, OK?
Custer County has a FEMA National Risk Index rating of Relatively Low, placing it in the 62th 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 Custer County?
Custer County is evaluated for five major natural hazard types: tornado (91th percentile), wildfire (77th percentile), earthquake (53th percentile), flooding (39th percentile), hurricane (24th percentile). The highest-risk hazard is tornado at the 91th 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 Custer County risk compare to the Oklahoma average?
Custer County's composite risk percentile is 62th, compared to the Oklahoma state average of 56th percentile. The state's overall risk rating is Relatively Low. This means Custer County faces higher natural disaster risk than the typical county in Oklahoma.
Is Custer County at risk for tornado?
Yes, Custer County's tornado risk is at the 91th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Custer County is at the 39th 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 Custer County higher risk than average?
Custer County's composite risk score of 62th percentile is above the Oklahoma state average of 56th percentile. This elevated risk is driven by tornado exposure (91th percentile), along with wildfire and earthquake 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.