Johnson County Disaster Risk
Johnson County, Wyoming
FEMA Risk Rating
Very Low
National Percentile
19th
of 3,144 counties
State Rank
#18
of 23 (1 = highest risk)
Flood Risk
37th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Very Low
Higher than 37% 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 16% of US counties
Earthquake
Seismic activity and ground shaking risk
Relatively Low
Higher than 58% of US counties
Risk Overview
About Natural Disaster Risk in Johnson County, Wyoming
Johnson County well below national risk
Johnson County scores 19.31 on the composite risk scale, earning a Very Low rating and placing it substantially safer than the U.S. average. The county experiences roughly 50% less overall disaster risk than typical American counties.
Second-safest in Wyoming
Johnson County ranks among Wyoming's least risky counties with a score of 19.31, trailing only a handful of peers compared to the state average of 37.86. Its Very Low rating reflects below-average exposure to the state's most common hazards.
Comparable to Hot Springs, safer than Laramie
Johnson County's 19.31 score is nearly identical to Hot Springs County (16.09) but dramatically lower than Laramie County (76.69) to the south. The county's primary vulnerability—wildfire at 87.85—is notably high but still reflects regional exposure rather than unusual local danger.
Wildfire dominates risk profile
Wildfire risk reaches 87.85 in Johnson County, far exceeding other hazards and reflecting its location in Wyoming's forested north. Earthquakes (57.70) and floods (36.90) pose secondary risks, but tornado exposure remains minimal at 15.62.
Wildfire insurance is essential here
Johnson County residents face significant wildfire exposure, making specialized wildfire coverage critical—standard homeowners policies often exclude or cap wildfire damage. Bundle wildfire, earthquake, and flood coverage to ensure comprehensive protection for your home and property.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Johnson County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Johnson County
Risk Verdict
Johnson County carries a low natural disaster risk burden, scoring at the 19th percentile under the FEMA National Risk Index. Johnson County's 19th percentile ranking is favorable, though every county carries at least one natural hazard worth knowing — reviewing the specific risks listed above helps households focus their preparedness where it matters most.
Hazard Breakdown
Wildfire risk is Johnson County's dominant natural hazard, ranked at the 88th percentile nationally under FEMA's National Risk Index. Earthquake ranks second at the 58th percentile nationally. Additional tracked hazards include flood (37th percentile), tornado (16th percentile).
Preparedness Context
Wildfire ranks as Johnson County's primary hazard at the 88th percentile nationally. For Johnson County households in high-WUI areas, go-bag readiness — the ability to leave within 15 minutes — is more important than shelter-in-place planning for most residential properties. Alongside wildfire, earthquake at the 58th percentile nationally means a multi-season preparedness mindset — fire season and flood or storm season often require different household plans. Johnson County county's local emergency management office publishes community-specific wildfire risk assessments and evacuation zone maps; households should review their zone assignment and sign up for zone-specific alerts.
Regional Context
Compared to the Wyoming county average, Johnson County's composite score runs 18.6 points lower — a gap that reflects the county's relatively modest hazard profile within its state context.
Is your household prepared for Johnson County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Johnson County, WY?
What types of natural hazards affect Johnson County?
How does Johnson County risk compare to the Wyoming average?
Is Johnson County at risk for wildfire?
How is natural disaster risk measured?
Is Johnson County a safe place to live?
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.