Petersburg Borough Flag

Petersburg Borough

State:
Alaska
County Seat:

Petersburg Borough's estimated 2026 population is 3,446 with a growth rate of 0.15% in the past year according to the most recent United States census data. Petersburg Borough is the 21st largest county in Alaska. The 2010 population was 3,219 and has seen a growth of 7.05% since that time.

3,446
Total Population
1
Population Density (mi²)
21
Population Rank (State)
5 0.15%
Annual Population Growth

Petersburg Borough Population

Demographics

Economics and Income Statistics