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Lexington County

County Seat:

Lexington County's estimated 2025 population is 318,374 with a growth rate of 1.41% in the past year according to the most recent United States census data. Lexington County is the 6th largest county in South Carolina. The 2010 population was 263,365 and has seen a growth of 20.89% since that time.

318,374
Total Population
455
Population Density (mi²)
6
Population Rank (State)
4.4K 1.41%
Annual Population Growth

Lexington County Population

Demographics

Economics and Income Statistics