Total Population in Richland County, SC
ACS 2024 5-Year Estimates
How Richland County Compares
National Distribution
Where Richland County falls among all 3,222 U.S. counties for total population.
■ Richland County: 422,117
Ranking Context
| Rank | County | Value |
|---|---|---|
| #172 | Hillsborough County, NH | 426,378 |
| #173 | Cameron County, TX | 426,120 |
| #174 | Clackamas County, OR | 423,975 |
| #175 | Richland County, SC | 422,117 |
| #176 | Charleston County, SC | 420,264 |
| #177 | Placer County, CA | 419,156 |
| #178 | St. Charles County, MO | 414,535 |
Total Population in Richland County, South Carolina
Richland County, South Carolina has a total population of 422,117, which ranks #175 of 3,222 out of 3,222 counties nationwide. This is 99.9% below the national value of 330M.
Within South Carolina, Richland County ranks #2 of 46 out of 46 counties. This places it in the 95th percentile nationally.
Total population count from the American Community Survey. All data comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates for 2024.
About this data
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024). All values are estimates derived from survey samples and are subject to margin of error. For more information, see our methodology.