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

Carter County Disaster Risk

Carter County, Montana

FEMA Risk Rating

Very Low

National Percentile

2th

of 3,144 counties

State Rank

#53

of 56 (1 = highest risk)

Flood Risk

4th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 4% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 74% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 8% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 12% of US counties

Risk Overview

About Natural Disaster Risk in Carter County, Montana

Carter County is exceptionally low-risk nationally

Carter County's composite risk score of 1.75 ranks it among the lowest-risk counties in the entire United States. This exceptional rating reflects below-average exposure to nearly all major natural hazards, from floods to earthquakes.

Montana's safest county by far

Carter County's composite score of 1.75 is the lowest in Montana, far below the state average of 33.31 and even lower than other very-low-risk counties. The county's Very Low rating reflects minimal exposure across nearly all hazard categories.

Far safer than any surrounding county

Carter County's risk (1.75) is dramatically lower than all neighboring counties; even Broadwater (17.68), Montana's next-safest county, scores 10 times higher. This exceptional safety profile is consistent across all hazard types, from flood to earthquake to tornado.

Minimal natural disaster risk across the board

Carter County residents enjoy remarkably low exposure to natural hazards, with all risk categories below state and national medians. Even the county's highest risks—wildfire (73.82) and tornado (7.60)—remain substantially lower than those of neighboring counties and the state average.

Standard homeowners insurance provides excellent coverage

Carter County's minimal disaster risk means a standard homeowners insurance policy adequately protects most residents. Focus on standard coverage limits and routine maintenance; specialized disaster insurance is unlikely to be cost-effective in your exceptionally safe county.

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

Preparedness Guide

What to Prepare for in Carter County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    74th percentile
  2. #2
    EarthquakePrepare
    12th percentile
  3. #3
    TornadoPrepare
    8th percentile

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

Risk Advisory: Carter County

Risk Verdict

At the 2th percentile nationally, Carter County experiences relatively limited natural hazard pressure compared to most of the country. The 2th percentile national ranking is one lens; Carter County residents also benefit from reviewing which specific hazard types drive the county's composite score and preparing accordingly.

Hazard Breakdown

Wildfire risk is Carter County's dominant natural hazard, ranked at the 74th percentile nationally under FEMA's National Risk Index. Earthquake ranks second at the 12th percentile nationally. Additional tracked hazards include tornado (8th percentile), flood (4th percentile).

Preparedness Context

Carter County's dominant hazard is wildfire, ranked at the 74th percentile nationally. Maintaining at least 30 feet of lean, clean vegetation around structures in Carter County and keeping gutters clear of debris significantly reduces ignition risk from wind-driven embers. A secondary earthquake exposure at the 12th percentile nationally means Carter County residents face hazards from two distinct natural peril categories during different seasons. Carter County's households benefit from reviewing homeowners insurance before fire season, specifically whether the policy covers replacement cost rather than actual cash value, and whether it includes additional living expenses if displacement is required.

Regional Context

A composite score 31.6 points below the Montana state average puts Carter County in a better-than-typical position relative to neighboring counties.

Is your household prepared for Carter 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 Carter County, MT?
Carter County has a FEMA National Risk Index rating of Very Low, placing it in the 2th 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 Carter County?
Carter County is evaluated for five major natural hazard types: wildfire (74th percentile), earthquake (12th percentile), tornado (8th percentile), flooding (4th percentile). The highest-risk hazard is wildfire at the 74th 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 Carter County risk compare to the Montana average?
Carter County's composite risk percentile is 2th, compared to the Montana state average of 33th percentile. The state's overall risk rating is Very Low. This means Carter County faces lower natural disaster risk than the typical county in Montana.
Is Carter County at risk for wildfire?
Yes, Carter County's wildfire risk is at the 74th percentile nationally. This is above the national median. For flooding specifically, Carter County is at the 4th 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 Carter County a safe place to live?
Carter County's composite risk score of 2th percentile is below the Montana state average of 33th percentile, indicating relatively lower exposure to natural hazards. However, no county is completely risk-free. The primary hazard type is wildfire at the 74th 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.