Where is Morgan County?

11 Morgan Counties in 11 states · 390,395 people (2025)

There are 11 counties named Morgan County in the United States, in Alabama, Colorado, Georgia, Illinois, Indiana, Kentucky, Missouri, Ohio, Tennessee, Utah and West Virginia. The most populous is Morgan County, Alabama (county seat: Decatur), with 126,483 people in 2025. 8 of them are named after Daniel Morgan, American pioneer, soldier, and politician (1736-1802).

Map of the United States showing where all 11 Morgan Counties are, labeled by state
Every Morgan 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 11 Morgan Counties

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

StateCounty seatPopulation 2025Land area (sq mi)EstablishedNamed after
Morgan County, AlabamaDecatur126,4835801818Daniel Morgan
Morgan County, ColoradoFort Morgan30,3061,2811889Christopher A. Morgan
Morgan County, GeorgiaMadison22,0953471807–
Morgan County, IllinoisJacksonville32,5155691823Daniel Morgan
Morgan County, IndianaMartinsville74,9674041822Daniel Morgan
Morgan County, KentuckyWest Liberty14,4153811822Daniel Morgan
Morgan County, MissouriVersailles22,4185981833Daniel Morgan
Morgan County, OhioMcConnelsville13,6264161817Daniel Morgan
Morgan County, TennesseeWartburg22,1605221817Daniel Morgan
Morgan County, UtahMorgan13,3836091862Jedediah M. Grant
Morgan County, West VirginiaBerkeley Springs18,0272291820Daniel Morgan

Questions about Morgan Counties

How many Morgan Counties are there?

There are 11 Morgan Counties in the United States, in Alabama, Colorado, Georgia, Illinois, Indiana, Kentucky, Missouri, Ohio, Tennessee, Utah and West Virginia.

Which Morgan County is the largest?

By population, Morgan County, Alabama (126,483 people in 2025). By land area, Morgan County, Colorado (1,281 sq mi).

Which Morgan County is the oldest?

Morgan County, Georgia, established in 1807. The newest is Morgan County, Colorado (1889).

Why are there so many Morgan Counties?

8 of the 11 are named after Daniel Morgan, American pioneer, soldier, and politician (1736-1802). Many counties took their names from the same founders, presidents and generals as new states were organized.

How do I find out which Morgan 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