6th most populous of 46
With 313,774 residents in 2024, Lexington County ranks 6th by population among South Carolina's 46 counties and is home to 5.7% of the state's residents.

Lexington County has the 5th lowest poverty rate in South Carolina (11.1%) and the 6th highest share of college graduates (34.1% of adults).
Lexington County is home to 313,774 people (2024 estimate) on 699 square miles of land. This page brings together official U.S. Census Bureau population estimates since 2000, the components of change—births, deaths and migration—American Community Survey indicators on income, housing, poverty and education, BEA economic accounts and BLS unemployment.
Pick an indicator to see its long-run evolution.
U.S. Census Bureau: intercensal estimates 2000–2009, Vintage 2020 (2010–2019) and Vintage 2024 (2020–2024), July 1.
| Indicator | Value | Year and source |
|---|---|---|
| Population estimate | 313,774 | 2024 · U.S. Census Bureau |
| Population, 2010 Census | 262,391 | 2010 · U.S. Census Bureau |
| Population, 2000 | 216,873 | July 1, 2000 · Census intercensal |
| Change since 2000 | +44.7% | 2000–2024 · Census |
| International migration | +1,280 | 2024 · Census Vintage 2024 |
| Domestic migration | +2,433 | 2024 · Census Vintage 2024 |
| Birth rate | 10.6 per 1,000 | 2024 · calculated |
| Death rate | 10.0 per 1,000 | 2024 · calculated |
| Population rank in South Carolina | 6th of 46 | 2024 · calculated |
| Per capita personal income | $64,070 | BEA, 2024 · official |
| Gross domestic product | $19.8 billion | BEA, current dollars, 2024 · official |
| Median household income | $77,408 | ACS 2020–2024 5-year · official |
| Poverty rate | 11.1% | ACS 2020–2024 5-year · official |
| Bachelor’s degree or higher | 34.1% | Age 25+, ACS 2020–2024 5-year · official |
| Foreign-born residents | 6.5% | ACS 2020–2024 5-year · official |
| Median home value | $234,500 | ACS 2020–2024 5-year · official |
| Median gross rent | $1,178/month | ACS 2020–2024 5-year · official |
| Median age | 39.8 years | ACS 2020–2024 5-year · official |
| Households | 121,964 | ACS 2020–2024 5-year · official |
| Owner-occupied homes | 77.4% | ACS 2020–2024 5-year · official |
Comparable indicators for Lexington County, South Carolina and the United States.
| Indicator | County | South Carolina | U.S. | Reference |
|---|---|---|---|---|
| Population change 2020–2024 | +6.8% | +7.0% | +2.6% | Census Vintage 2024 |
| Birth rate (per 1,000) | 10.6 | 10.6 | 10.6 | 2024 |
| Death rate (per 1,000) | 10.0 | 10.7 | 9.1 | 2024 |
| Net migration rate (per 1,000) | 11.8 | 16.7 | 8.2 | 2024 |
| Population density (/mi²) | 448.9 | 182.2 | 96.3 | 2024 |
| Per capita personal income | $64,070 | $60,776 | $73,204 | BEA, 2024 |
| Median household income | $77,408 | $69,324 | $80,734 | ACS 2020–2024 5-year |
| Poverty rate | 11.1% | 14.1% | 12.5% | ACS 2020–2024 5-year |
| Bachelor’s degree or higher | 34.1% | 32.1% | 35.7% | Age 25+, ACS 2020–2024 5-year |
| Foreign-born residents | 6.5% | 5.8% | 14.1% | ACS 2020–2024 5-year |
| Median home value | $234,500 | $259,000 | $332,700 | ACS 2020–2024 5-year |
| Median gross rent | $1,178/month | $1,180/month | $1,413/month | ACS 2020–2024 5-year |
| Median age | 39.8 years | 40.2 years | 38.9 years | ACS 2020–2024 5-year |
| Owner-occupied homes | 77.4% | 71.9% | 65.2% | ACS 2020–2024 5-year |
With 313,774 residents in 2024, Lexington County ranks 6th by population among South Carolina's 46 counties and is home to 5.7% of the state's residents.
Its population went from 216,873 in 2000 to 313,774 in 2024, a change of +44.7%, compared with +36.1% for South Carolina as a whole.
In the year to July 2024 the county recorded 3,318 births and 3,125 deaths, so births outnumbered deaths by 193.
Annual Census estimates since 2000 put the county's highest population in 2024, at 313,774.
Lexington County has about 448.9 residents per square mile of land, ranking 5th of 46 counties; South Carolina averages 182.2.
With a median household income of $77,408 (ACS 2020–2024 5-year), the county ranks 7th of 46 South Carolina counties; the state median is $69,324.
Its economy produced $19.8 billion of GDP in 2024 (BEA), 6th largest among 46 South Carolina counties.
Real GDP grew 4.8% in 2024, adjusted for inflation (BEA, chained 2017 dollars).