BOROUGH · AK

Kenai Peninsula Borough, Alaska

Kenai Peninsula Borough is a borough in Alaska with FIPS code 02122 and an estimated population of 61,223 (Census 2023), 4th largest of 30 in the state.

County facts

Name: Kenai Peninsula Borough
State: Alaska
Type: borough
FIPS code: 02122
State FIPS: 02
Population (2023): 61,223
Change since 2020: +3.9%
State rank: 4 of 30

Population is the Census Bureau’s Vintage 2023 estimate.

Other counties in Alaska

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

Questions

What is the FIPS code for Kenai Peninsula Borough?

Kenai Peninsula Borough, Alaska has the five-digit FIPS code 02122: 02 for the state and 122 for the county.

What state is Kenai Peninsula Borough in?

Kenai Peninsula 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.