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

Cascade County Disaster Risk

Cascade County, Montana

FEMA Risk Rating

Relatively Moderate

National Percentile

83th

of 3,144 counties

State Rank

#3

of 56 (1 = highest risk)

Flood Risk

83th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 83% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Moderate

Higher than 84% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 21% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 72% of US counties

Risk Overview

About Natural Disaster Risk in Cascade County, Montana

Cascade County faces notably elevated national risk

Cascade County scores 83.14 on the composite risk index, placing it in the Relatively Moderate category and substantially above the national average. This score reflects exceptional flood risk (83.40), high wildfire risk (84.16), and significant earthquake exposure (71.76).

Montana's second-highest risk county

Cascade County ranks second among Montana's 56 counties with a composite score of 83.14, far exceeding the state average of 33.31. Only one other Montana county faces comparable multi-hazard exposure, making Cascade a critical focus for disaster preparedness.

Significantly higher risk than all regional peers

Cascade County's composite score (83.14) is far higher than neighboring Broadwater (17.68), Chouteau (39.47), and Blaine (45.87) counties. Its flood risk (83.40) and wildfire risk (84.16) are among the highest in the state, reflecting the county's position along major river systems and in fire-prone terrain.

Floods and wildfires dominate your risk landscape

Cascade County residents face exceptional flood risk (83.40) and wildfire risk (84.16), creating a compound disaster scenario that demands serious preparation. Earthquake risk (71.76) and tornado risk (20.80) are also above state averages, broadening your exposure across multiple hazard types.

Comprehensive multi-hazard insurance is critical

Cascade County's exceptional exposure to floods and wildfires—both excluded from standard homeowners policies—means you must secure separate specialized coverage for both. Work with an insurance broker to ensure your policy adequately protects against your county's top threats, and maintain defensible space and flood preparedness as ongoing priorities.

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

Preparedness Guide

What to Prepare for in Cascade County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    84th percentile
  2. #2
    FloodPrepare
    83th percentile
  3. #3
    EarthquakePrepare
    72th percentile

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

Risk Advisory: Cascade County

Risk Verdict

At the 83th percentile nationally, Cascade County sits in the upper half of U.S. counties for natural disaster exposure. At this risk level, having a documented household preparedness plan — not just awareness — is the meaningful next step for Cascade County residents.

Hazard Breakdown

Wildfire risk is Cascade County's dominant natural hazard, ranked at the 84th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 83th percentile nationally. Additional tracked hazards include earthquake (72th percentile), tornado (21th percentile).

Preparedness Context

Cascade County sits at the 84th percentile for wildfire exposure. Signing up for Cascade County's county emergency alert system and knowing the pre-planned evacuation route before conditions deteriorate are the two highest-value preparedness actions for residents here. The county's flood exposure at the 83th percentile nationally complements the wildfire risk — saturating rain after burn scarring often triggers secondary flood and debris flow events. In Cascade County, wildfire smoke often precedes the flame front by hours or days; households benefit from tracking EPA's AirNow.gov and having HEPA air filtration available as a first line of indoor protection when air quality alerts are issued.

Regional Context

The Montana county average is 49.8 composite points below Cascade County's score, a gap that reflects the county's elevated position in the state's hazard distribution.

Is your household prepared for Cascade 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 Cascade County, MT?
Cascade County has a FEMA National Risk Index rating of Relatively Moderate, placing it in the 83th 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 Cascade County?
Cascade County is evaluated for five major natural hazard types: wildfire (84th percentile), flooding (83th percentile), earthquake (72th percentile), tornado (21th percentile). The highest-risk hazard is wildfire at the 84th 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 Cascade County risk compare to the Montana average?
Cascade County's composite risk percentile is 83th, compared to the Montana state average of 33th percentile. The state's overall risk rating is Very Low. This means Cascade County faces higher natural disaster risk than the typical county in Montana.
Is Cascade County at risk for wildfire?
Yes, Cascade County's wildfire risk is at the 84th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Cascade County is at the 83th 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 Cascade County higher risk than average?
Cascade County's composite risk score of 83th percentile is above the Montana state average of 33th percentile. This elevated risk is driven by wildfire exposure (84th percentile), along with flooding 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.