BOROUGH · AK

Petersburg Borough, Alaska

Petersburg Borough is a borough in Alaska with FIPS code 02195 and an estimated population of 3,427 (Census 2023), 21st largest of 30 in the state.

County facts

Name: Petersburg Borough
State: Alaska
Type: borough
FIPS code: 02195
State FIPS: 02
Population (2023): 3,427
Change since 2020: +0.7%
State rank: 21 of 30

Population is the Census Bureau’s Vintage 2023 estimate.

Other counties in Alaska

Anchorage Municipality Matanuska-Susitna Borough Fairbanks North Star Borough Kenai Peninsula Borough Juneau City and Borough Bethel Census Area Ketchikan Gateway Borough Kodiak Island Borough All 30

Questions

What is the FIPS code for Petersburg Borough?

Petersburg Borough, Alaska has the five-digit FIPS code 02195: 02 for the state and 195 for the county.

What state is Petersburg Borough in?

Petersburg Borough is in Alaska.

How do I know if an address is in this county?

Use the address lookup. ZIP codes and city names can cross county lines, so an address is the reliable check.

Sources: U.S. Census Bureau geographic reference files; Census Bureau Population Estimates, Vintage 2023. Last reviewed 2026-10-27.