Where is Osceola County?

3 Osceola Counties in 3 states · 511,214 people (2025)

There are 3 counties named Osceola County in the United States, in Florida, Iowa and Michigan. The most populous is Osceola County, Florida (county seat: Kissimmee), with 481,718 people in 2025. 3 of them are named after Osceola, Billy Powell, leader of the Seminole in Florida (1804-1838).

Map of the United States showing where all 3 Osceola Counties are, labeled by state
Every Osceola 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 3 Osceola Counties

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

StateCounty seatPopulation 2025Land area (sq mi)EstablishedNamed after
Osceola County, FloridaKissimmee481,7181,3271887Osceola
Osceola County, IowaSibley5,9803991851Osceola
Osceola County, MichiganReed City23,5165661840Osceola

Questions about Osceola Counties

How many Osceola Counties are there?

There are 3 Osceola Counties in the United States, in Florida, Iowa and Michigan.

Which Osceola County is the largest?

By population, Osceola County, Florida (481,718 people in 2025). By land area, Osceola County, Florida (1,327 sq mi).

Which Osceola County is the oldest?

Osceola County, Michigan, established in 1840. The newest is Osceola County, Florida (1887).

Why are there so many Osceola Counties?

3 of the 3 are named after Osceola, Billy Powell, leader of the Seminole in Florida (1804-1838). Many counties took their names from the same founders, presidents and generals as new states were organized.

How do I find out which Osceola 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