A county-equivalent in the United States is a term used by the federal government to describe one of the two following state subdivisions:

• A unit of local government in certain states which is comparable to a county as found in most states.
• An area defined by the United States Census Bureau for statistical purposes in which no county-level government exists.

Examples of the first class can be found in a handful of states:

• Louisiana has no counties. There, parishes are for all legal purposes the equivalents of the counties found in 48 of the 49 other states. The parishes of Louisiana are county equivalents.
• In Virginia, all municipalities incorporated as cities are legally independent of any county that would otherwise contain them. However, Virginia also has traditional counties as found in virtually all other states. As all parts of Virginia are located in either a county or an independent city, Virginia's independent cities are considered county-equivalents.
• Three other cities within the United States are legally independent of any county: Baltimore, Maryland, Carson City, Nevada, and St. Louis, Missouri. These are also county-equivalents.
• Alaska is unique in several respects. In that state, the unit of government directly below the state level is called a borough instead of a county. Although the city of Anchorage is legally called the Municipality of Anchorage, it is considered a consolidated city and borough under state law. All of Alaska's boroughs are considered county-equivalents.

The second class of county-equivalents is unique to Alaska. Most of the land area of that state has no organized county-level government. The Alaska state government calls the entire portion of the state that is not part of a borough or municipality the Unorganized Borough. In 1970, the Census Bureau, in cooperation with the state, divided the Unorganized Borough into census areas for statistical purposes. Each census area is considered a county-equivalent. As of the 2000 census there were a total of 3,141 county-equivalents in the United States.

Demographics of the United States