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Counties with the Highest Natural Hazard Risk in Alaska

The top 25 of 30 Alaska counties on GIS Map, ranked by FEMA National Risk Index score (0-100, national percentile).

#CountyRisk Index score
1Anchorage Municipality
97.4
2Matanuska-Susitna Borough
93.3
3Kenai Peninsula Borough
93.0
4Fairbanks North Star Borough
88.5
5Aleutians West Census Area
67.3
6Kodiak Island Borough
65.1
7Yukon-Koyukuk Census Area
61.5
8Kusilvak Census Area
57.9
9Southeast Fairbanks Census Area
57.0
10Northwest Arctic Borough
54.6
11Bethel Census Area
44.3
12Copper River Census Area
39.9
13Dillingham Census Area
35.7
14Nome Census Area
34.1
15Denali Borough
28.3
16Sitka City and Borough
23.8
17Aleutians East Borough
21.3
18Chugach Census Area
19.6
19Petersburg Borough
15.4
20North Slope Borough
14.8
21Hoonah-Angoon Census Area
14.3
22Juneau City and Borough
11.5
23Lake and Peninsula Borough
6.3
24Haines Borough
4.3
25Yakutat City and Borough
3.0

Source: FEMA National Risk Index (December 2025). All counties with data are ranked. Estimates carry margins of error.

Citing this page: GIS Map, “Counties with the Highest Natural Hazard Risk in Alaska”, https://gismap.land/rankings/alaska/highest-risk-counties. Figures from FEMA National Risk Index (December 2025).

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