Wyoming Natural Disaster Risk by County
FEMA National Risk Index rankings for all 23 counties
Wyoming spans 23 counties with an average FEMA National Risk Index score of 37.9 (low risk) and roughly $344M in combined expected annual loss statewide. No county in the state reaches the High risk band.
The highest-risk county is Laramie County (score 76.7, low), while Niobrara County (score 3.3) carries the lowest. Use the table below to compare every county by score, top hazard, and expected annual loss.
County Rankings
| # | County | Risk Score | Risk Rating | Top Hazard | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Laramie County | Low | Winter Weather | $42M | |
| 2 | Teton County | Low | Avalanche | $40M | |
| 3 | Natrona County | Low | Winter Weather | $33M | |
| 4 | Sheridan County | Low | Wildfire | $26M | |
| 5 | Fremont County | Low | Landslide | $19M | |
| 6 | Park County | Low | Landslide | $20M | |
| 7 | Campbell County | Low | Hail | $25M | |
| 8 | Lincoln County | Low | Avalanche | $18M | |
| 9 | Albany County | Low | Winter Weather | $18M | |
| 10 | Carbon County | Very Low | Avalanche | $12M | |
| 11 | Converse County | Very Low | Wildfire | $10M | |
| 12 | Big Horn County | Very Low | Landslide | $9M | |
| 13 | Sweetwater County | Very Low | Landslide | $12M | |
| 14 | Goshen County | Very Low | Hail | $10M | |
| 15 | Platte County | Very Low | Wildfire | $6M | |
| 16 | Washakie County | Very Low | Landslide | $6M | |
| 17 | Sublette County | Very Low | Landslide | $8M | |
| 18 | Johnson County | Very Low | Wildfire | $7M | |
| 19 | Uinta County | Very Low | Winter Weather | $8M | |
| 20 | Crook County | Very Low | Wildfire | $6M | |
| 21 | Hot Springs County | Very Low | Landslide | $5M | |
| 22 | Weston County | Very Low | Wildfire | $5M | |
| 23 | Niobrara County | Very Low | Wildfire | $2M |
All 23 Wyoming counties, ranked by FEMA National Risk Index score.
Frequently Asked Questions
Which Wyoming county has the highest natural disaster risk?
Laramie County has the highest FEMA National Risk Index score in Wyoming at 76.7 (Low), driven largely by winter weather.
What is the average natural disaster risk in Wyoming?
Wyoming counties average a National Risk Index score of 37.9 across 23 counties, with 0 rated High or Very High risk.
How much are expected annual losses across Wyoming?
FEMA estimates roughly $344M in combined expected annual loss from natural hazards across all Wyoming counties.