Counties in Alaska by social vulnerability score (FEMA National Risk Index), 2025

Kusilvak Census Area had the highest social vulnerability score (FEMA National Risk Index) of 30 counties in 2025, at 100. Fairbanks North Star Borough had the lowest, at 10.6. The median was 59.2. Source: the Federal Emergency Management Agency.

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Median59.230 counties

Map of counties, 2025

Aleutians East Borough: 99.9 indexAleutians West Census Area: 22 indexAnchorage Municipality: 11.4 indexBethel Census Area: 100 indexBristol Bay Borough: 44 indexChugach Census Area: 10.6 indexCopper River Census Area: 93.4 indexDenali Borough: 17.5 indexDillingham Census Area: 99 indexFairbanks North Star Borough: 10.6 indexHaines Borough: 52.1 indexHoonah-Angoon Census Area: 98 indexJuneau City and Borough: 21.1 indexKenai Peninsula Borough: 47.1 indexKetchikan Gateway Borough: 28.1 indexKodiak Island Borough: 33.2 indexKusilvak Census Area: 100 indexLake and Peninsula Borough: 96.7 indexMatanuska-Susitna Borough: 17.2 indexNome Census Area: 99.9 indexNorth Slope Borough: 58.9 indexNorthwest Arctic Borough: 99.8 indexPetersburg Borough: 59.5 indexPrince of Wales-Hyder Census Area: 92.8 indexSitka City and Borough: 55.1 indexSkagway Municipality: 51.6 indexSoutheast Fairbanks Census Area: 88.8 indexWrangell City and Borough: 67.6 indexYakutat City and Borough: 97.9 indexYukon-Koyukuk Census Area: 99.4 index
  • Under 21
  • 21 to 46
  • 46 to 59
  • 59 to 94
  • 94 to 99
  • 99 and over
index, 2025. Source: FEMA National Risk Index, National Risk Index Counties, Social Vulnerability Score (SOVI_SCORE). Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2025

Kusilvak Census Area: 100 indexKusilvak Census Area100Bethel Census Area: 100 indexBethel Census Area100Nome Census Area: 99.9 indexNome Census Area99.9Aleutians East Borough: 99.9 indexAleutians East Borough99.9Northwest Arctic Borough: 99.8 indexNorthwest Arctic Borough99.8Yukon-Koyukuk Census Area: 99.4 indexYukon-Koyukuk Census Area99.4Dillingham Census Area: 99 indexDillingham Census Area99Hoonah-Angoon Census Area: 98 indexHoonah-Angoon Census Area98Yakutat City and Borough: 97.9 indexYakutat City and Borough97.9Lake and Peninsula Borough: 96.7 indexLake and Peninsula Borough96.7Copper River Census Area: 93.4 indexCopper River Census Area93.4Prince of Wales-Hyder Census Area: 92.8 indexPrince of Wales-Hyder Census Area92.8Southeast Fairbanks Census Area: 88.8 indexSoutheast Fairbanks Census Area88.8Wrangell City and Borough: 67.6 indexWrangell City and Borough67.6Petersburg Borough: 59.5 indexPetersburg Borough59.5North Slope Borough: 58.9 indexNorth Slope Borough58.9Sitka City and Borough: 55.1 indexSitka City and Borough55.1Haines Borough: 52.1 indexHaines Borough52.1Skagway Municipality: 51.6 indexSkagway Municipality51.6Kenai Peninsula Borough: 47.1 indexKenai Peninsula Borough47.1Bristol Bay Borough: 44 indexBristol Bay Borough44Kodiak Island Borough: 33.2 indexKodiak Island Borough33.2Ketchikan Gateway Borough: 28.1 indexKetchikan Gateway Borough28.1Aleutians West Census Area: 22 indexAleutians West Census Area22Juneau City and Borough: 21.1 indexJuneau City and Borough21.1Denali Borough: 17.5 indexDenali Borough17.5Matanuska-Susitna Borough: 17.2 indexMatanuska-Susitna Borough17.2Anchorage Municipality: 11.4 indexAnchorage Municipality11.4Chugach Census Area: 10.6 indexChugach Census Area10.6Fairbanks North Star Borough: 10.6 indexFairbanks North Star Borough10.6Kusilvak Census Area: 100 indexKusilvak Census Area100Bethel Census Area: 100 indexBethel Census Area100Nome Census Area: 99.9 indexNome Census Area99.9Aleutians East Borough: 99.9 indexAleutians East Borough99.9Northwest Arctic Borough: 99.8 indexNorthwest Arctic Borough99.8Yukon-Koyukuk Census Area: 99.4 indexYukon-Koyukuk Census Area99.4Dillingham Census Area: 99 indexDillingham Census Area99Hoonah-Angoon Census Area: 98 indexHoonah-Angoon Census Area98Yakutat City and Borough: 97.9 indexYakutat City and Borough97.9Lake and Peninsula Borough: 96.7 indexLake and Peninsula Borough96.7Copper River Census Area: 93.4 indexCopper River Census Area93.4Prince of Wales-Hyder Census Area: 92.8 indexPrince of Wales-Hyder Census Area92.8Southeast Fairbanks Census Area: 88.8 indexSoutheast Fairbanks Census Area88.8Wrangell City and Borough: 67.6 indexWrangell City and Borough67.6Petersburg Borough: 59.5 indexPetersburg Borough59.5North Slope Borough: 58.9 indexNorth Slope Borough58.9Sitka City and Borough: 55.1 indexSitka City and Borough55.1Haines Borough: 52.1 indexHaines Borough52.1Skagway Municipality: 51.6 indexSkagway Municipality51.6Kenai Peninsula Borough: 47.1 indexKenai Peninsula Borough47.1Bristol Bay Borough: 44 indexBristol Bay Borough44Kodiak Island Borough: 33.2 indexKodiak Island Borough33.2Ketchikan Gateway Borough: 28.1 indexKetchikan Gateway Borough28.1Aleutians West Census Area: 22 indexAleutians West Census Area22Juneau City and Borough: 21.1 indexJuneau City and Borough21.1Denali Borough: 17.5 indexDenali Borough17.5Matanuska-Susitna Borough: 17.2 indexMatanuska-Susitna Borough17.2Anchorage Municipality: 11.4 indexAnchorage Municipality11.4Chugach Census Area: 10.6 indexChugach Census Area10.6Fairbanks North Star Borough: 10.6 indexFairbanks North Star Borough10.6
index. Source: FEMA National Risk Index, National Risk Index Counties, Social Vulnerability Score (SOVI_SCORE). Retrieved 2026-10-12.

Full ranking

About this ranking

Social vulnerability of a US county as used in FEMA's National Risk Index, from 0 to 100: the county's national percentile rank among all counties, based on the Census Bureau's Community Resilience Estimates, which count residents with social and economic risk factors such as low income, age, disability and household conditions. Higher means more vulnerable.

The period is the year of the National Risk Index edition (the December 2025 edition is 2025), not a year of events. FEMA rebuilds the index with new data and methods in each edition, so values from different editions are not a time series. The index is meant for nationwide comparison and planning, not as a local risk assessment.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

Federal Emergency Management Agency (FEMA), National Risk Index Dataset: National Risk Index Counties, Social Vulnerability Score (SOVI_SCORE). https://fema.maps.arcgis.com/home/item.html?id=39485e8035d446a5bff03259508ae355. Retrieved 2026-10-12. This product uses the FEMA National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

Federal Emergency Management Agency. (2025). National Risk Index Counties, Social Vulnerability Score (SOVI_SCORE) (Counties in Alaska by social vulnerability score (FEMA National Risk Index), 2025) [Data set]. Retrieved October 12, 2026, from https://fema.maps.arcgis.com/home/item.html?id=39485e8035d446a5bff03259508ae355

MLA 9

National Risk Index Counties, Social Vulnerability Score (SOVI_SCORE), Counties in Alaska by social vulnerability score (FEMA National Risk Index), 2025. Federal Emergency Management Agency, 16 Dec. 2025, https://fema.maps.arcgis.com/home/item.html?id=39485e8035d446a5bff03259508ae355. Invokely, https://invokely.ai/rankings/social-vulnerability-score/alaska-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

Federal Emergency Management Agency. 2025. National Risk Index Counties, Social Vulnerability Score (SOVI_SCORE). Counties in Alaska by social vulnerability score (FEMA National Risk Index), 2025. Dataset. Accessed October 12, 2026. https://fema.maps.arcgis.com/home/item.html?id=39485e8035d446a5bff03259508ae355. Also distributed by Invokely, https://invokely.ai/rankings/social-vulnerability-score/alaska-counties.

Harvard

Federal Emergency Management Agency (2025) National Risk Index Counties, Social Vulnerability Score (SOVI_SCORE), Counties in Alaska by social vulnerability score (FEMA National Risk Index), 2025 [Dataset]. Available at: https://fema.maps.arcgis.com/home/item.html?id=39485e8035d446a5bff03259508ae355, via Invokely: https://invokely.ai/rankings/social-vulnerability-score/alaska-counties (Accessed: 12 October 2026).

BibTeX
@misc{federal_counties_in_alaska_by_2025,
  author = {{Federal Emergency Management Agency}},
  title = {{National Risk Index Counties, Social Vulnerability Score (SOVI\_SCORE): Counties in Alaska by social vulnerability score (FEMA National Risk Index), 2025}},
  year = {2025},
  howpublished = {Data set},
  url = {https://fema.maps.arcgis.com/home/item.html?id=39485e8035d446a5bff03259508ae355},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/social-vulnerability-score/alaska-counties. Publisher attribution: Federal Emergency Management Agency (FEMA), National Risk Index Dataset: National Risk Index Counties, Social Vulnerability Score (SOVI\_SCORE). https://fema.maps.arcgis.com/home/item.html?id=39485e8035d446a5bff03259508ae355. Retrieved 2026-10-12. This product uses the FEMA National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).},
}
RIS
TY  - DATA
AU  - Federal Emergency Management Agency
TI  - National Risk Index Counties, Social Vulnerability Score (SOVI_SCORE): Counties in Alaska by social vulnerability score (FEMA National Risk Index), 2025
PY  - 2025
DA  - 2025/12/16
PB  - Federal Emergency Management Agency
DB  - Invokely
UR  - https://fema.maps.arcgis.com/home/item.html?id=39485e8035d446a5bff03259508ae355
L2  - https://invokely.ai/rankings/social-vulnerability-score/alaska-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/social-vulnerability-score/alaska-counties.
N1  - Publisher attribution: Federal Emergency Management Agency (FEMA), National Risk Index Dataset: National Risk Index Counties, Social Vulnerability Score (SOVI_SCORE). https://fema.maps.arcgis.com/home/item.html?id=39485e8035d446a5bff03259508ae355. Retrieved 2026-10-12. This product uses the FEMA National Risk Index dataset API or downloadable datasets but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
ER  - 
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Rank Counties in Alaska by social vulnerability score (FEMA National Risk Index) using official data, and cite the source.
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Questions

Which county has the highest social vulnerability score (FEMA National Risk Index)?

Kusilvak Census Area, with 100 in 2025, according to the Federal Emergency Management Agency.

Which county has the lowest social vulnerability score (FEMA National Risk Index)?

Fairbanks North Star Borough, with 10.6 in 2025.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: Federal Emergency Management Agency, National Risk Index Counties, Social Vulnerability Score (SOVI_SCORE). Retrieved 2026-10-12.

Social vulnerability score (FEMA National Risk Index): other rankings

Counties in Alaska: more rankings