Where is Worth County?

3 Worth Counties in 3 states · 29,311 people (2025)

There are 3 counties named Worth County in the United States, in Georgia, Iowa and Missouri. The most populous is Worth County, Georgia (county seat: Sylvester), with 20,059 people in 2025. 2 of them are named after William J. Worth, American army general (1794–1849).

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

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

StateCounty seatPopulation 2025Land area (sq mi)EstablishedNamed after
Worth County, GeorgiaSylvester20,0595711853–
Worth County, IowaNorthwood7,3384001851William J. Worth
Worth County, MissouriGrant City1,9142671861William J. Worth

Questions about Worth Counties

How many Worth Counties are there?

There are 3 Worth Counties in the United States, in Georgia, Iowa and Missouri.

Which Worth County is the largest?

By population, Worth County, Georgia (20,059 people in 2025). By land area, Worth County, Georgia (571 sq mi).

Which Worth County is the oldest?

Worth County, Iowa, established in 1851. The newest is Worth County, Missouri (1861).

Why are there so many Worth Counties?

2 of the 3 are named after William J. Worth, American army general (1794–1849). Many counties took their names from the same founders, presidents and generals as new states were organized.

How do I find out which Worth 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.

What county am I in? →

Other common county names