Where is Lancaster County?

4 Lancaster Counties in 4 states · 1 million people (2025)

There are 4 counties named Lancaster County in the United States, in Nebraska, Pennsylvania, South Carolina and Virginia. The most populous is Lancaster County, Pennsylvania (county seat: Lancaster), with 563,159 people in 2025. 2 of them are named after Lancaster, county town of Lancashire, England.

Map of the United States showing where all 4 Lancaster Counties are, labeled by state
Every Lancaster 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 Lancaster Counties

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

StateCounty seatPopulation 2025Land area (sq mi)EstablishedNamed after
Lancaster County, NebraskaLincoln334,0498381855Lancaster County
Lancaster County, PennsylvaniaLancaster563,1599441729Lancaster
Lancaster County, South CarolinaLancaster114,2965491798–
Lancaster County, VirginiaLancaster10,9951331651Lancaster

Questions about Lancaster Counties

How many Lancaster Counties are there?

There are 4 Lancaster Counties in the United States, in Nebraska, Pennsylvania, South Carolina and Virginia.

Which Lancaster County is the largest?

By population, Lancaster County, Pennsylvania (563,159 people in 2025). By land area, Lancaster County, Pennsylvania (944 sq mi).

Which Lancaster County is the oldest?

Lancaster County, Virginia, established in 1651. The newest is Lancaster County, Nebraska (1855).

Why are there so many Lancaster Counties?

2 of the 4 are named after Lancaster, county town of Lancashire, England. Many counties took their names from the same founders, presidents and generals as new states were organized.

How do I find out which Lancaster 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