Wyoming earthquake risk
Lincoln County has the highest earthquake risk in Wyoming, scoring 87.8 out of 100 — rated "Relatively Low" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
|---|---|---|---|
| 1 | Lincoln County | 87.8 | Relatively Low |
| 2 | Teton County | 87.1 | Relatively Low |
| 3 | Fremont County | 86.2 | Relatively Low |
| 4 | Natrona County | 82.8 | Relatively Low |
| 5 | Park County | 78.2 | Relatively Low |
| 6 | Sublette County | 76.2 | Relatively Low |
| 7 | Campbell County | 72.3 | Relatively Low |
| 8 | Washakie County | 71.7 | Relatively Low |
| 9 | Laramie County | 70 | Relatively Low |
| 10 | Sweetwater County | 65.6 | Relatively Low |
| 11 | Sheridan County | 65.5 | Relatively Low |
| 12 | Uinta County | 64.2 | Relatively Low |
| 13 | Albany County | 61.5 | Relatively Low |
| 14 | Big Horn County | 61.4 | Relatively Low |
| 15 | Hot Springs County | 60.8 | Relatively Low |
| 16 | Carbon County | 60.7 | Relatively Low |
| 17 | Johnson County | 57.7 | Very Low |
| 18 | Converse County | 55.3 | Very Low |
| 19 | Platte County | 40.6 | Very Low |
| 20 | Goshen County | 38.9 | Very Low |
| 21 | Weston County | 31.3 | Very Low |
| 22 | Crook County | 29.2 | Very Low |
| 23 | Niobrara County | 28.4 | Very Low |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Earthquake risk nationally:
Other hazard risks in Wyoming:
Frequently asked questions
What is the highest earthquake risk county in Wyoming?
Lincoln County, WY has the highest earthquake risk in Wyoming, with a FEMA National Risk Index score of 87.8 out of 100 (rated "Relatively Low").
What causes earthquake risk in Wyoming?
Earthquake risk reflects expected annual losses from ground shaking. High scores concentrate in California, the Pacific Northwest, Alaska, and the New Madrid Seismic Zone (spanning Missouri, Arkansas, Tennessee, and neighboring states). NOAA's Storm Events Database does not track earthquakes, so recorded event counts are not shown.