County (United States) - County Equivalents

The term county equivalents includes three additional types of administrative divisions which are different from the type of county found in most states:

• Alaska census areas: Most of the land area of Alaska is not contained within any of Alaska's 18 boroughs. This vast area, larger than France and Germany combined, is officially referred to by the Alaska state government as the Unorganized Borough, and, outside of other incorporated borough limits, has no independent "county" government, although several incorporated city governments exist within its boundaries; the majority of it is governed and run by the State of Alaska as an extension of state government.A The United States Census Bureau, in cooperation with the Alaska state government for census and electoral districting purposes, has divided the Unorganized Borough into 11 census areas for statistical purposes only.B
• Independent cities: These are cities that legally belong to no county. As of 2004, there are 42 such cities in the United States, including Baltimore, Maryland; Carson City, Nevada; St. Louis, Missouri; and all 39 cities in Virginia, where any municipality incorporated as a city (in contrast to town) is by law severed from any county that might otherwise have contained it.
• Washington, D.C. has a special status. It is not part of any state; instead, in accordance with Article 1, Section 8 of the U.S. Constitution, the city is under the jurisdiction of the U.S. Congress. For a long time, the District of Columbia and the City of Washington have been coterminous, though originally they were not. All of the former counties within the District of Columbia have been abolished, and they are of historical interest only.