Richland County, South Carolina Demographics 2026
Richland County, South Carolina has a population of 422,117, the 2nd most populous county in South Carolina. The median household income is $63,784 and the median home value is $242,800. The poverty rate is 17.2%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Richland County Quick Facts
How Richland County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 418,725 | 422,117 | +0.8% |
| Median household income | $61,699 | $63,784 | +3.4% |
| Median home value | $224,200 | $242,800 | +8.3% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 55 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Richland County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Columbia | 139,643 | $55,529 | 24.0% | $264,300 |
| St. Andrews | 19,868 | $46,511 | 25.4% | $161,300 |
| Dentsville | 15,209 | $45,473 | 15.7% | $163,700 |
| Cayce | 13,741 | $62,045 | 13.7% | $166,800 |
| Irmo | 11,813 | $80,489 | 9.2% | $203,400 |
| Forest Acres | 10,530 | $78,306 | 8.2% | $279,300 |
| Woodfield | 9,465 | $45,526 | 19.8% | $150,800 |
| Lake Murray of Richland | 7,023 | $119,107 | 2.0% | $422,100 |
| Blythewood | 5,731 | $94,167 | 4.8% | $384,600 |
| Capitol View | 4,374 | $46,645 | 10.6% | $187,600 |
| Arthurtown | 3,272 | $21,046 | 63.2% | $120,100 |
| Hopkins | 1,985 | $50,063 | 25.7% | $99,300 |
| Gadsden | 1,443 | $52,966 | 29.0% | $112,900 |
| Olympia | 935 | $29,663 | 77.1% | N/A |
| Arcadia Lakes | 901 | $103,250 | 3.5% | $351,000 |
| Eastover | 485 | $20,735 | 35.7% | $117,400 |
Explore South Carolina Rankings
Population Overview
Richland County is located in South Carolina with a total population of 422,117. It is the 2nd most populous county out of 46 in South Carolina. The county encompasses 16 Census-designated places.
Age Demographics
The median age in Richland County is 34.4 years. This is 14% lower than the state median of 40.2 years.
Economy, Income & Housing
The median household income in Richland County is $63,784. This is 8% lower than the state median of $69,324. It is also 21% lower than the national median of $80,734. The poverty rate stands at 17.2%. This is 22% higher than the state poverty rate of 14.1%. The unemployment rate is 6.5%. This is 32% higher than the state rate of 4.9%. The median home value is $242,800. Housing costs are 6% lower than the state median of $259,000. The home-value-to-income ratio is 3.8x. 60.3% of occupied housing units are owner-occupied. This homeownership rate is 16% lower than the state average of 71.9%.
Race & Ethnicity
The largest racial or ethnic group in Richland County is Black or African American, making up 46.9% of the population. White (non-Hispanic) residents account for 39.4%. The Black or African American population is significantly higher than the state average (46.9% vs 24.6%). The Asian population is significantly higher than the state average (3.0% vs 1.8%).
Education
40.7% of residents aged 25 and older hold a bachelor's degree or higher. This places Richland County in the top 10% of all counties in the state for educational attainment. This is 27% higher than the state rate of 32.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 92.2%. Notably, 17.3% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All figures for Richland County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against South Carolina and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Richland County, South Carolina?
Richland County has a population of 422,117, making it the 2nd most populous county in South Carolina.
What is the median income in Richland County?
The median household income in Richland County is $63,784 with a poverty rate of 17.2%.
How many cities are in Richland County, South Carolina?
Richland County contains 16 Census-designated places.