Alaska Counties by Population (2025)

There are 30 counties in Alaska.

Anchorage Municipality is the largest county in the state, with a population of 284,259. The most recent census shows that its population has decreased by 0.02% 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 : 118,773
• Fairbanks North Star Borough : 94,116

Alaska Counties with the Fewest Residents

The smallest county in Alaska is Yakutat City and Borough, with a population of just 691. This total represents a increase of 0.0% since the last census count was performed.

Other small counties include:

• Bristol Bay Borough : 792
• Skagway Municipality : 1,101
• Lake and Peninsula Borough : 1,239

Alaska Counties with Rapid Growth

Matanuska-Susitna Borough, with its sizeable population of 118,773, has shown the largest population growth, with an increase of 0.1% since the last census.

On the other hand, Lake and Peninsula Borough has had the largest decrease in population, with its 1,239 current residents totalling 0.1% less than the previous census.