Out of 41 counties with wildfire data, these are the counties with the highest smoke exposure risk.
| Statistic | Value |
|---|---|
| Counties ranked | 41 |
| Avg smoke risk (top 100) | 11/100 |
| Total county fires 5yr (top 100) | 2,105 |
Top 41 Counties
| Rank | County | State | Smoke Risk | County Fires (since 2021) | ZIP Codes |
|---|---|---|---|---|---|
| 1 | Fairbanks North Star | Alaska | 30/100 | 111 | 15 |
| 2 | Denali | Alaska | 28/100 | 36 | 1 |
| 3 | Southeast Fairbanks Census Area | Alaska | 27/100 | 126 | 2 |
| 4 | Southeast Fairbanks | Alaska | 24/100 | 126 | 6 |
| 5 | Denali Borough | Alaska | 24/100 | 36 | 4 |
| 6 | Yukon-Koyukuk Census Area | Alaska | 22/100 | 424 | 6 |
| 7 | Yukon-Koyukuk | Alaska | 21/100 | 424 | 25 |
| 8 | Northwest Arctic | Alaska | 20/100 | 92 | 11 |
| 9 | Kusilvak | Alaska | 18/100 | 14 | 11 |
| 10 | Bethel | Alaska | 16/100 | 39 | 23 |
| 11 | Dillingham | Alaska | 16/100 | 18 | 6 |
| 12 | Dillingham Census Area | Alaska | 16/100 | 18 | 3 |
| 13 | Anchorage Municipality | Alaska | 15/100 | 129 | 4 |
| 14 | Matanuska-Susitna Borough | Alaska | 15/100 | 129 | 2 |
| 15 | Bristol Bay | Alaska | 15/100 | 0 | 2 |
| 16 | Bristol Bay Borough | Alaska | 15/100 | 0 | 1 |
| 17 | Matanuska-Susitna | Alaska | 12/100 | 129 | 9 |
| 18 | Lake and Peninsula Borough | Alaska | 12/100 | 13 | 6 |
| 19 | Kenai Peninsula | Alaska | 11/100 | 42 | 9 |
| 20 | Kenai Peninsula Borough | Alaska | 11/100 | 42 | 4 |
| 21 | Bethel Census Area | Alaska | 11/100 | 39 | 4 |
| 22 | Lake and Peninsula | Alaska | 10/100 | 13 | 5 |
| 23 | Anchorage | Alaska | 10/100 | 10 | 29 |
| 24 | Copper River | Alaska | 10/100 | 2 | 2 |
| 25 | Wade Hampton Census Area | Alaska | 10/100 | 0 | 1 |
| 26 | Valdez-Cordova Census Area | Alaska | 9/100 | 10 | 4 |
| 27 | Nome | Alaska | 7/100 | 7 | 14 |
| 28 | Aleutians West | Alaska | 6/100 | 1 | 4 |
| 29 | Yakutat City and | Alaska | 5/100 | 1 | 1 |
| 30 | Chugach | Alaska | 5/100 | 0 | 2 |
| 31 | North Slope | Alaska | 4/100 | 15 | 5 |
| 32 | Kodiak Island | Alaska | 4/100 | 1 | 8 |
| 33 | Ketchikan Gateway Borough | Alaska | 3/100 | 10 | 3 |
| 34 | North Slope Borough | Alaska | 2/100 | 15 | 3 |
| 35 | Northwest Arctic Borough | Alaska | 0/100 | 15 | 1 |
| 36 | Juneau City and | Alaska | 0/100 | 5 | 6 |
| 37 | Juneau City and Borough | Alaska | 0/100 | 5 | 2 |
| 38 | Prince of Wales-Hyder | Alaska | 0/100 | 5 | 7 |
| 39 | Aleutians East | Alaska | 0/100 | 1 | 5 |
| 40 | Aleutians West Census Area | Alaska | 0/100 | 1 | 2 |
| 41 | Haines | Alaska | 0/100 | 1 | 1 |
Methodology
County rankings for Alaska based on average wildfire-smoke indicator scores and fire frequency.
Data sources: National Interagency Fire Center (NIFC), FEMA National Risk Index. Current air quality: EPA AirNow. Last updated: 2026-10-15.
Frequently Asked Questions
How is wildfire smoke risk calculated?
Smoke risk scores (0-100) are a ZipCheckup index built from the county's FEMA National Risk Index wildfire rating, the distance to recent NIFC wildfire incidents, the number of fires within 100 km and the county's fire count over the past 5 years. They do not measure smoke days or air quality; check AirNow.gov for current air quality.
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.