County Maps US

Lexington County, South Carolina

A county in South Carolina, ranked 6 of 46 by population.

CountyFIPS 45063

Within South Carolina
Lexington County, highlighted, with the areas around it. Boundaries generalised from the 2025 Census cartographic boundary file; neighbour fills carry no data. The dot marks Lexington, the county seat, located via the 2025 Census Gazetteer.

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Population
317,588
+22,599 (+7.7%) since 2020
Land area
698.5
square miles. A further 7.7% of the total area is water
Population density
455
people per square mile, computed rather than published
County seat
Lexington
Seat of county government.
Established
1804
221 years ago
Largest city
Lexington town
Population 25,729.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; Wikidata (CC0), Wikidata. Retrieved 30 August 2026.

Satellite view

Aerial imagery of Lexington County with its boundary drawn on top. A map shows you the shape; this shows you what is inside it, and which side of the line a place falls on.

Aerial view of Lexington County, South Carolina from the USGS National Map, with its boundary outlined
Imagery: USGS National Map, USGS Imagery Only, public domain, requested from USGS by your browser when you reach this point on the page, at 789 by 800 pixels. The boundary is the 2025 Census cartographic boundary file, reprojected to Web Mercator to match the imagery. You can also open the USGS National Map viewer.

Where Lexington County ranks

Position among the 46 counties of South Carolina, and among all 3,144 US counties and county-equivalents. Computed from the figures on this page.

MeasureValueIn South CarolinaNationally
Population317,5886th of 46235th of 3,144
Land area698.5 sq mi17th of 461,327th of 3,144
Population density455 per sq mi5th of 46310th of 3,144
Median household income$77,4087th of 46702nd of 3,143

Full data for Lexington County

Every figure below is attributed to the Census Bureau product it came from, with the vintage of that product.
MeasureValueSource and vintage
Population317,588Vintage 2025 Population Estimates
Population in 2020294,989Vintage 2025 Population Estimates
2020 estimates base?293,919Vintage 2025 Population Estimates
Land area698.5 sq mi2025 Gazetteer Files
Water area58.5 sq mi2025 Gazetteer Files
Total area757.1 sq mi2025 Gazetteer Files
Population density?455 per sq miComputed: Vintage 2025 estimates divided by 2025 Gazetteer land area
Median household income$77,408American Community Survey 2020-2024 5-Year Estimates
Median home value$234,500American Community Survey 2020-2024 5-Year Estimates
Median age39.8American Community Survey 2020-2024 5-Year Estimates
Households121,964American Community Survey 2020-2024 5-Year Estimates
Housing units132,916American Community Survey 2020-2024 5-Year Estimates

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, American Community Survey, American Community Survey 2020-2024 5-Year Estimates, released 29 January 2026. Population density is computed here, not published: it divides the Vintage 2025 population estimate by the 2025 Gazetteer land area, which are two different Census products. Retrieved 30 August 2026.

How the population changed

The Census Bureau publishes the components behind an estimate, not just the total. For the year to July 2025:

Births minus deaths
-55
3,138 births, 3,193 deaths
Net migration
+3,559
More people moved in than moved out.

Source: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026. Retrieved 30 August 2026.

The 6 areas bordering Lexington County

Ordered by the length of the border actually shared, which the Census Bureau publishes in its county adjacency file and which no other county reference presents.

Bordering areaStateShared borderPopulation
Aiken CountySouth Carolina42 mi181,515
Richland CountySouth Carolina36 mi434,956
Calhoun CountySouth Carolina29 mi14,188
Newberry CountySouth Carolina20 mi39,561
Saluda CountySouth Carolina15 mi19,680
Orangeburg CountySouth Carolina9.1 mi83,177

Source: US Census Bureau, County Adjacency File, 2025 County Adjacency File, released 15 September 2025. Retrieved 30 August 2026.

All 46 counties of South Carolina

Open the interactive South Carolina county map, or jump straight to any of them.

Data on this page last rebuilt 30 August 2026. How these figures are produced.