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

Powder River County Disaster Risk

Powder River County, Montana

FEMA Risk Rating

Very Low

National Percentile

4th

of 3,144 counties

State Rank

#48

of 56 (1 = highest risk)

Flood Risk

8th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 8% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Moderate

Higher than 88% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 7% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 18% of US counties

Risk Overview

About Natural Disaster Risk in Powder River County, Montana

Powder River County is exceptionally safe

Powder River County's composite risk score of 4.01 ranks among America's safest communities, with Very Low natural disaster exposure. The county's hazard profile is approximately 8% of typical national risk levels.

One of Montana's safest counties

Powder River County's score of 4.01 ranks as one of the lowest in Montana, well below the state average of 33.31. The county's risk exposure is roughly 88% lower than typical Montana communities.

Safest county in its region

Powder River County's risk score of 4.01 is lower than all nearby counties, including Musselshell (17.05), Phillips (34.51), and Petroleum (1.30). It represents an exceptionally stable natural hazard environment across southeastern Montana.

Wildfire is the primary seasonal threat

Wildfire risk of 87.98 is Powder River County's dominant hazard, while flood (7.82), tornado (7.28), and earthquake (17.97) risks all remain minimal. The county's rangeland landscape creates fire season vulnerability despite overall very low disaster exposure.

Wildfire insurance and seasonal vigilance

Ensure your homeowners policy includes wildfire coverage and maintain defensible space as your primary protective measures. Monitor fire season conditions and keep emergency evacuation plans current, as this is your county's only notable natural hazard.

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

Preparedness Guide

What to Prepare for in Powder River County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    88th percentile
  2. #2
    EarthquakePrepare
    18th percentile
  3. #3
    FloodPrepare
    8th percentile

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

Risk Advisory: Powder River County

Risk Verdict

Powder River County's overall natural disaster score at the 4th percentile puts it well below the national median for hazard exposure. A preparedness foundation — alert registration, household communication plan, and a basic supply review — costs little and remains valuable even at Powder River County's favorable 4th percentile ranking.

Hazard Breakdown

Wildfire risk is Powder River County's dominant natural hazard, ranked at the 88th percentile nationally under FEMA's National Risk Index. Earthquake ranks second at the 18th percentile nationally. Additional tracked hazards include flood (8th percentile), tornado (7th percentile).

Preparedness Context

With wildfire ranked at the 88th percentile nationally, Powder River County is in a zone where air quality can deteriorate rapidly before structures are threatened. An N95 respirator and a HEPA air purifier are practical items for Powder River County households to have on hand before fire season. Alongside wildfire, earthquake at the 18th percentile nationally means a multi-season preparedness mindset — fire season and flood or storm season often require different household plans. Defensible space, insurance review, and an evacuation plan are the three preparedness pillars for Powder River County households — and the insurance review is the one most often deferred by Powder River County residents and most costly to skip when a fire event actually occurs.

Regional Context

Powder River County's composite risk score sits 29.3 points below the Montana county average, reflecting a more favorable hazard environment than the state typical.

Is your household prepared for Powder River 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 Powder River County, MT?
Powder River County has a FEMA National Risk Index rating of Very Low, placing it in the 4th 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 Powder River County?
Powder River County is evaluated for five major natural hazard types: wildfire (88th percentile), earthquake (18th percentile), flooding (8th percentile), tornado (7th percentile). The highest-risk hazard is wildfire at the 88th 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 Powder River County risk compare to the Montana average?
Powder River County's composite risk percentile is 4th, compared to the Montana state average of 33th percentile. The state's overall risk rating is Very Low. This means Powder River County faces lower natural disaster risk than the typical county in Montana.
Is Powder River County at risk for wildfire?
Yes, Powder River County's wildfire risk is at the 88th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Powder River County is at the 8th 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 Powder River County a safe place to live?
Powder River County's composite risk score of 4th 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 88th 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.