There are 29 county equivalents in Alaska.
Most of the land area in Alaska has not been divided into political subdivisions. Boroughs, cities and boroughs, and municipalities are legal entities. Census areas are statistical entities. In Alaska, there are twelve boroughs, four city and boroughs, and two municipalities (borough equivalent). There are four consolidated governments, Anchorage, Juneau, Sitka, and Wrangell, which are classified as municipal governments.
Alaska has 11 statistical entities called "census areas." Census areas are statistical areas established in cooperation with state government for reporting data in the portion of the state outside any borough. These areas are sometimes referred to as the "unorganized borough" and are administered by the state.
Boroughs and census areas were first recognized as county equivalent entities for the 1980 Census.
There are 37 county subdivisions known as census subareas in Alaska.