Gallatin County Disaster Risk
Gallatin County, Montana
FEMA Risk Rating
Relatively Moderate
National Percentile
81th
of 3,144 counties
State Rank
#4
of 56 (1 = highest risk)
Flood Risk
64th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Relatively Low
Higher than 64% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Moderate
Higher than 91% of US counties
Tornado
Tornado and severe thunderstorm risk
Very Low
Higher than 17% of US counties
Earthquake
Seismic activity and ground shaking risk
Moderate
Higher than 94% of US counties
Risk Overview
About Natural Disaster Risk in Gallatin County, Montana
Gallatin's Risk Among Nation's Highest
Gallatin County's composite risk score of 80.98 places it well above the national average, earning a "Relatively Moderate" rating. Your county faces significant natural disaster exposure from earthquakes and wildfires.
Second-Riskiest County in Montana
At 80.98, Gallatin ranks as Montana's second-highest-risk county after Flathead (86.45), far exceeding the state average of 33.31. Your county concentrates substantial natural disaster hazards across multiple threat types.
Significantly Elevated Regional Risk
Gallatin County (80.98) approaches Flathead's extreme exposure (86.45) while vastly exceeding central and eastern counties like Fergus (45.10) and Dawson (63.80). Your southwestern mountain location amplifies earthquake and wildfire risks.
Earthquakes and Wildfire Dominate
Earthquake risk at 94.15 and wildfire at 91.38 are nearly identical as Gallatin's top threats, both exceeding 90. Flood risk (64.25) presents a significant secondary hazard, while tornadoes (16.67) pose minimal danger.
Comprehensive Coverage Is Non-Negotiable
Gallatin County residents must secure earthquake, wildfire, and flood insurance as core protections, not optional add-ons. Your county's exceptional risk profile demands comprehensive coverage to safeguard your home and financial security.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Gallatin County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Gallatin County
Risk Verdict
With a composite score at the 81th percentile, Gallatin County sits above the national median for natural hazard exposure. Proactive preparedness — not reactive response — is key to managing life in one of the country's higher-risk counties; Gallatin County residents should plan accordingly.
Hazard Breakdown
Earthquake risk is Gallatin County's dominant natural hazard, ranked at the 94th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 91th percentile nationally. Additional tracked hazards include flood (64th percentile), tornado (17th percentile).
Preparedness Context
At the 94th percentile nationally for earthquake exposure, Gallatin County households benefit from practicing Drop, Cover, and Hold On — the protocol that minimizes injury during shaking. Getting under a sturdy table or desk and holding on until shaking stops is the key action. The county's wildfire risk at the 91th percentile nationally is a seasonal consideration alongside the year-round earthquake threat, requiring awareness of both hazard types. Building age matters for earthquake risk in Gallatin County: structures built before local seismic code adoption are statistically more vulnerable. Contacting the local building department about retrofit programs can reveal whether your structure qualifies for mitigation assistance.
Regional Context
At 47.7 points above the Montana state average, Gallatin County carries meaningfully higher natural disaster exposure than a typical Montana county.
Is your household prepared for Gallatin County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Gallatin County, MT?
What types of natural hazards affect Gallatin County?
How does Gallatin County risk compare to the Montana average?
Is Gallatin County at risk for earthquake?
How is natural disaster risk measured?
Why is Gallatin County higher risk than average?
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.