Where is Lawrence County?

11 Lawrence Counties in 11 states · 392,453 people (2025)

There are 11 counties named Lawrence County in the United States, in Alabama, Arkansas, Illinois, Indiana, Kentucky, Mississippi, Missouri, Ohio, Pennsylvania, South Dakota and Tennessee. The most populous is Lawrence County, Pennsylvania (county seat: New Castle), with 83,911 people in 2025. 9 of them are named after James Lawrence, American naval officer.

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

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

StateCounty seatPopulation 2025Land area (sq mi)EstablishedNamed after
Lawrence County, AlabamaMoulton33,8436911818James Lawrence
Lawrence County, ArkansasWalnut Ridge16,2735881815James Lawrence
Lawrence County, IllinoisLawrenceville13,7903721821James Lawrence
Lawrence County, IndianaBedford45,5684491818James Lawrence
Lawrence County, KentuckyLouisa15,7654161821James Lawrence
Lawrence County, MississippiMonticello11,8194311814James Lawrence
Lawrence County, MissouriMount Vernon39,4016121843James Lawrence
Lawrence County, OhioIronton55,7104531815James Lawrence
Lawrence County, PennsylvaniaNew Castle83,9113571849USS Lawrence
Lawrence County, South DakotaDeadwood29,4598001875John Lawrence
Lawrence County, TennesseeLawrenceburg46,9146171817James Lawrence

Questions about Lawrence Counties

How many Lawrence Counties are there?

There are 11 Lawrence Counties in the United States, in Alabama, Arkansas, Illinois, Indiana, Kentucky, Mississippi, Missouri, Ohio, Pennsylvania, South Dakota and Tennessee.

Which Lawrence County is the largest?

By population, Lawrence County, Pennsylvania (83,911 people in 2025). By land area, Lawrence County, South Dakota (800 sq mi).

Which Lawrence County is the oldest?

Lawrence County, Mississippi, established in 1814. The newest is Lawrence County, South Dakota (1875).

Why are there so many Lawrence Counties?

9 of the 11 are named after James Lawrence, American naval officer. Many counties took their names from the same founders, presidents and generals as new states were organized.

How do I find out which Lawrence 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