Out of 23 counties with wildfire data, these are the counties with the highest smoke exposure risk.
| Statistic | Value |
|---|---|
| Counties ranked | 23 |
| Avg smoke risk (top 100) | 30/100 |
| Total county fires 5yr (top 100) | 1,344 |
Top 23 Counties
| Rank | County | State | Smoke Risk | County Fires (5yr) | ZIP Codes |
|---|---|---|---|---|---|
| 1 | Sheridan | Wyoming | 38/100 | 159 | 13 |
| 2 | Natrona | Wyoming | 37/100 | 95 | 13 |
| 3 | Converse | Wyoming | 37/100 | 89 | 2 |
| 4 | Fremont | Wyoming | 36/100 | 120 | 15 |
| 5 | Johnson | Wyoming | 34/100 | 95 | 3 |
| 6 | Weston | Wyoming | 34/100 | 52 | 4 |
| 7 | Platte | Wyoming | 33/100 | 17 | 6 |
| 8 | Campbell | Wyoming | 31/100 | 159 | 6 |
| 9 | Niobrara | Wyoming | 31/100 | 89 | 6 |
| 10 | Crook | Wyoming | 29/100 | 69 | 7 |
| 11 | Washakie | Wyoming | 29/100 | 62 | 2 |
| 12 | Hot Springs | Wyoming | 29/100 | 34 | 2 |
| 13 | Park | Wyoming | 28/100 | 44 | 7 |
| 14 | Goshen | Wyoming | 28/100 | 8 | 7 |
| 15 | Teton | Wyoming | 27/100 | 30 | 9 |
| 16 | Big Horn | Wyoming | 27/100 | 20 | 12 |
| 17 | Laramie | Wyoming | 27/100 | 8 | 17 |
| 18 | Carbon | Wyoming | 26/100 | 48 | 13 |
| 19 | Uinta | Wyoming | 26/100 | 44 | 8 |
| 20 | Albany | Wyoming | 26/100 | 32 | 11 |
| 21 | Lincoln | Wyoming | 23/100 | 15 | 16 |
| 22 | Sublette | Wyoming | 23/100 | 11 | 5 |
| 23 | Sweetwater | Wyoming | 20/100 | 44 | 11 |
Methodology
County rankings for Wyoming based on average smoke risk score and fire frequency.
Data sources: National Interagency Fire Center (NIFC), EPA AirNow. Last updated: 2026-06-04.
Frequently Asked Questions
How is wildfire smoke risk calculated?
Smoke risk scores (0-100) combine multiple factors: proximity to recent wildfires, county fire frequency over the past 5 years, historical smoke days, and geographic position relative to typical fire corridors. Higher scores indicate greater smoke exposure risk during fire season.
How can I protect myself from wildfire smoke?
Use a HEPA air purifier indoors, wear N95 or KN95 masks outdoors during smoke events, seal windows and doors, and monitor AirNow.gov for real-time air quality. Create a clean room in your home with the purifier running and windows sealed.