Alaska Counties by Population (2026)

There are 30 counties in Alaska.

Anchorage Municipality is the largest county in the state, with a population of 286,941. The most recent census shows that its population has decreased by 0.01% since the previous census.

A number of other Alaska counties also boast relatively large populations for their state, though not able to match the density of Anchorage Municipality:

• Matanuska-Susitna Borough : 120,078
• Fairbanks North Star Borough : 93,320

Alaska Counties with the Fewest Residents

The smallest county in Alaska is Yakutat City and Borough , with a population of just 663. This total represents a decrease of 0.0% since the last census count was performed.

Other small counties include:

• Bristol Bay Borough : 829
• Skagway Municipality : 1,112
• Lake and Peninsula Borough : 1,404

Alaska Counties with Rapid Growth

Matanuska-Susitna Borough , with its sizeable population of 120,078, has shown the largest population growth, with an increase of 0.1% since the last census.

On the other hand, Skagway Municipality has had the largest decrease in population, with its 1,112 current residents totalling 0.1% less than the previous census.