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Counties with the Cleanest Air in Alaska

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

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

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 Cleanest Air in Alaska”, https://gismap.land/rankings/alaska/cleanest-air-counties. Figures from EPA Air Quality Index annual summary (2024).

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