List of boroughs and census areas in Alaska

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Alaska is divided into 19 organized boroughs and 11 census areas in the Unorganized Borough. For census purposes, boroughs and census areas are treated like counties.

Key ideas
- The Unorganized Borough is not a borough itself. It covers more than half the state (about 970,500 km²). If it were a state, it would be the largest in the U.S. About 10% of Alaskans live there (around 75,800 people as of 2024).
- Organized boroughs come in four classes and have local government powers. The land outside them is not part of any borough.
- The Unorganized Borough is split into 11 census areas by the Census Bureau for statistics; these areas have no government of their own.
- Some state services (like police and education funding) are provided directly by the state in parts of the Unorganized Borough.
- Seven consolidated city-boroughs exist: Juneau City and Borough, Skagway, Sitka City and Borough, Yakutat City and Borough, Wrangell City and Borough, Haines Borough, and Anchorage (the Municipality of Anchorage, a consolidated city-borough).
- Alaska uses FIPS codes (the state code is 02), so each county-equivalent has a 02XXX code.

Population and size (examples)
- Organized boroughs: populations range from about 690 (Yakutat) to about 289,600 (Anchorage); land areas range from roughly 434 sq mi (example: Skagway) to about 88,824 sq mi (North Slope).
- Census areas: populations range from about 2,300 (Hoonah-Angoon) to about 18,237 (Bethel); areas range from about 4,393 sq mi (Aleutians West) to about 145,576 sq mi (Yukon-Koyukuk).

Overall, Alaska has 30 county equivalents (19 organized boroughs plus 11 census areas), and the Unorganized Borough alone makes up a vast portion of the state.