Lancaster County, Virginia

County seat: Lancaster · Population 10,995 (2025) · 133 sq mi

Lancaster County is the 112th most populous of Virginia's 133 counties, with 10,995 people (2025 estimate). Its county seat is Lancaster. It is part of the Northern Neck Planning District Commission (PD 17) region, one of the 21 Planning District Commissions of Virginia. The map shows its 3 cities and towns and the 5 neighboring counties.

Map of Lancaster County, Virginia with cities, towns and the county boundary
Lancaster County, Virginia with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).

Lancaster County facts

County seat
Lancaster
Population (2025 estimate)
10,995 +0.7% since 2020
Land area
133 sq mi 94th largest of 133
Water area
98 sq mi
Population density
83 per sq mi
Established
1651
Same name
One of 4 Lancaster Counties in the US
Named after
Lancaster county town of Lancashire, England
Largest city
Kilmarnock 1,381 in the county
Median household income
$69,713
Cities and towns
3 plus 2 CDPs
ZIP codes
6
Time zone
Eastern
FIPS code
51103

Cities and towns in Lancaster County

Lancaster County has 3 incorporated cities, towns and villages. Populations count the people living inside Lancaster County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
KilmarnockTown1,381Northumberland County
IrvingtonTown470
White StoneTown386

Unincorporated communities (CDPs)

Census-designated places are communities without their own city government; the county provides their services.

CommunityPopulationAlso in
Weems279
Lancaster20

ZIP codes in Lancaster County

6 ZIP codes reach into Lancaster County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Lancaster County, 2020–2025

Lancaster County grew by 77 people (+0.7%) between April 2020 and July 2025: 865 more deaths than births and a net gain of 954 people from migration.

Year (July 1)Population
202010,899
202110,938
202210,835
202310,879
202410,971
202510,995

Neighboring counties

Printable Lancaster County map

The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.

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Sources

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