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

Fergus County Disaster Risk

Fergus County, Montana

FEMA Risk Rating

Relatively Low

National Percentile

45th

of 3,144 counties

State Rank

#21

of 56 (1 = highest risk)

Flood Risk

36th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Very Low

Higher than 36% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 80% of US counties

Tornado

Tornado and severe thunderstorm risk

Very Low

Higher than 16% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 26% of US counties

Risk Overview

About Natural Disaster Risk in Fergus County, Montana

Fergus Risk Exceeds National Average

Fergus County's composite risk score of 45.10 surpasses the national average baseline, earning a "Relatively Low" rating. Your county faces substantial natural disaster exposure, particularly from wildfire.

Above-State-Average Risk Profile

At 45.10, Fergus ranks well above Montana's state average of 33.31, placing it in the upper-middle tier for risk. Your county faces notably elevated hazard concentration compared to most Montana communities.

Higher Risk Than Eastern Peers

Fergus County (45.10) significantly exceeds Daniels (1.81) and Fallon (5.41) to the east, approaching Custer County (42.14) to the south. Your central location and wildfire exposure drive this elevated risk profile.

Wildfire Dominates Fergus Threats

Wildfire at 80.41 is Fergus County's primary hazard, making it your critical concern. Flood risk (36.48) presents a secondary threat, while tornadoes (15.71) and earthquakes (25.89) pose lower but measurable dangers.

Prioritize Fire and Flood Insurance

Fergus County residents should ensure comprehensive fire insurance and flood coverage, especially in riparian zones. Given your 80.41 wildfire score, investing in defensible space and fire-resistant materials provides essential protection beyond insurance.

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

Preparedness Guide

What to Prepare for in Fergus County

Top Hazards by Exposure

  1. #1
    WildfirePrepare
    80th percentile
  2. #2
    FloodPrepare
    36th percentile
  3. #3
    EarthquakePrepare
    26th percentile

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

Risk Advisory: Fergus County

Risk Verdict

Fergus County's FEMA risk score places it at the 45th percentile nationally, indicating lower-than-typical exposure for a U.S. county. Being ranked at the 45th percentile nationally is an advantage for Fergus County — it means fewer statistically likely events, though basic readiness ensures households are covered when exceptions occur.

Hazard Breakdown

Wildfire risk is Fergus County's dominant natural hazard, ranked at the 80th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 36th percentile nationally. Additional tracked hazards include earthquake (26th percentile), tornado (16th percentile).

Preparedness Context

Fergus County sits at the 80th percentile for wildfire exposure. Signing up for Fergus 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. Alongside wildfire, flood at the 36th percentile nationally means a multi-season preparedness mindset — fire season and flood or storm season often require different household plans. In Fergus 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 11.8 composite points below Fergus County's score, a gap that reflects the county's elevated position in the state's hazard distribution.

Is your household prepared for Fergus 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 Fergus County, MT?
Fergus County has a FEMA National Risk Index rating of Relatively Low, placing it in the 45th 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 Fergus County?
Fergus County is evaluated for five major natural hazard types: wildfire (80th percentile), flooding (36th percentile), earthquake (26th percentile), tornado (16th percentile). The highest-risk hazard is wildfire at the 80th 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 Fergus County risk compare to the Montana average?
Fergus County's composite risk percentile is 45th, compared to the Montana state average of 33th percentile. The state's overall risk rating is Very Low. This means Fergus County faces higher natural disaster risk than the typical county in Montana.
Is Fergus County at risk for wildfire?
Yes, Fergus County's wildfire risk is at the 80th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Fergus County is at the 36th 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 Fergus County higher risk than average?
Fergus County's composite risk score of 45th percentile is above the Montana state average of 33th percentile. This elevated risk is driven by wildfire exposure (80th percentile). 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.