List of former United States counties
This is a list of U.S. counties that were established by a state, provincial, colonial or territorial government which no longer exist, for one reason or another. This does not include counties that were renamed but retained their territorial integrity.
- James County, Tennessee (1870-1919)
- Albemarle County, North Carolina
- Bath County, North Carolina
- Bute County, North Carolina
- Dobbs County, North Carolina
- Tryon County, North Carolina
- Glasgow County, North Carolina
- Kentucky County, Virginia (land that later became state of Kentucky)
- York County, Massachusetts (land that later became state of Maine)
- Crawford County, Michigan Territory (became part of Wisconsin Territory)
- Des Moines County, Michigan Territory (became part of Wisconsin Territory, now Iowa)
- Dubuque County, Michigan Territory (became part of Wisconsin Territory, now Iowa)
- Fincastle County, Virginia (land now part of Kentucky)
- Iowa County, Michigan Territory (became part of Wisconsin Territory)
- Isle Royale County, Michigan
- Brown County, Michigan Territory (subdivided out of existence)
- Manitou County, Michigan
- Milwaukee County, Michigan Territory (became part of Wisconsin Territory)
- Old Rappahannock County, Virginia
- Omeena County, Michigan (1840-1853, abolished, integrated into Grand Traverse County)
- Washington County, Michigan (formed in 1867 from Marquette County but declared unconstitutional)
- Upper Norfold County, Province of Virginia
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