GIS Map
RankingsAlaskaWorst air quality

Counties with the Worst Air Quality in Alaska

The top 8 of 8 Alaska counties on GIS Map, ranked by median Air Quality Index, counting only counties that host an EPA air monitor.

#CountyMedian AQI
1Fairbanks North Star Borough
42
2Denali Borough
35
3Anchorage Municipality
24
4Juneau City and Borough
24
5Matanuska-Susitna Borough
15
6Aleutians East Borough
13
7Kenai Peninsula Borough
8
8North Slope Borough
5

Source: EPA Air Quality Index annual summary (2024). All counties with data are ranked. Estimates carry margins of error.

Citing this page: GIS Map, “Counties with the Worst Air Quality in Alaska”, https://gismap.land/rankings/alaska/worst-air-quality-counties. Figures from EPA Air Quality Index annual summary (2024).

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