Where is Sumter County?

4 Sumter Counties in 4 states · 303,228 people (2025)

There are 4 counties named Sumter County in the United States, in Alabama, Florida, Georgia and South Carolina. The most populous is Sumter County, Florida (county seat: Bushnell), with 157,772 people in 2025. 4 of them are named after Thomas Sumter, American general during the American Revolution (1734–1832).

Map of the United States showing where all 4 Sumter Counties are, labeled by state
Every Sumter County in the United States (red), labeled with its state. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).

All 4 Sumter Counties

Sorted by state. Each link opens the county's map.

StateCounty seatPopulation 2025Land area (sq mi)EstablishedNamed after
Sumter County, AlabamaLivingston11,5889041832Thomas Sumter
Sumter County, FloridaBushnell157,7725571853Thomas Sumter
Sumter County, GeorgiaAmericus28,8014831831Thomas Sumter
Sumter County, South CarolinaSumter105,067665–Thomas Sumter

Questions about Sumter Counties

How many Sumter Counties are there?

There are 4 Sumter Counties in the United States, in Alabama, Florida, Georgia and South Carolina.

Which Sumter County is the largest?

By population, Sumter County, Florida (157,772 people in 2025). By land area, Sumter County, Alabama (904 sq mi).

Which Sumter County is the oldest?

Sumter County, Georgia, established in 1831. The newest is Sumter County, Florida (1853).

Why are there so many Sumter Counties?

4 of the 4 are named after Thomas Sumter, American general during the American Revolution (1734–1832). Many counties took their names from the same founders, presidents and generals as new states were organized.

How do I find out which Sumter County an address is in?

Open the county map of the state: it has a search box for cities, towns and ZIP codes. On a phone, the "what county am I in" tool on our sister site uses your location.

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Other common county names