Alaska Counties Directory & Interactive Map
Complete official guide to all 30 counties in Alaska (AK). Explore 2024 US Census population estimates, county seats, FIPS codes, land areas, and interactive mapping tools powered by GeoMap Suite.
Alaska County Breakdown
Showing 7 of 7 documented counties and seats.
County Name | FIPS | County Seat | Population (Census) | Land Area | Quick Tool |
|---|---|---|---|---|---|
| Municipality of Anchorage | 02020 | Anchorage | 287,145 | 1,705 sq mi | Lookup |
| Matanuska-Susitna Borough | 02170 | Palmer | 107,081 | 24,682 sq mi | Lookup |
| Fairbanks North Star Borough | 02090 | Fairbanks | 95,655 | 7,366 sq mi | Lookup |
| Kenai Peninsula Borough | 02122 | Soldotna | 58,799 | 16,075 sq mi | Lookup |
| City and Borough of Juneau | 02110 | Juneau | 31,555 | 2,702 sq mi | Lookup |
| Bethel Census Area | 02050 | Bethel | 18,666 | 40,570 sq mi | Lookup |
| Yukon-Koyukuk Census Area | 02290 | Fort Yukon | 5,343 | 145,505 sq mi | Lookup |
Geographic Structure of Alaska Counties
County Administration & Governance
In Alaska, county governments manage vital public infrastructure, tax assessments, law enforcement, judicial courts, election administration, and public records. The county seat (Anchorage and other municipal headquarters) houses the primary courthouse, commissioners, and sheriff’s department.
All Alaska counties carry a unique 5-digit Federal Information Processing Standard (FIPS) code, where the first two digits (02) designate the state and the remaining three digits identify each specific jurisdiction.
Geographic & Demographic Highlights
- Most Populous County:Municipality of Anchorage (287,145 residents)
- Largest by Land Area:Yukon-Koyukuk Census Area (145,505 sq mi)
- State Capital:Juneau
- Census Bureau Region:West United States
Demographic calculations derive from the United States Census Bureau 2024 Population Estimates Program (PEP) and TIGER/Line geographic boundary files.