South Carolina Counties by Population (2025)

The most populous counties in South Carolina are Greenville County with 570,745, Charleston County at 431,001, Richland County with 430,651, Horry County at 413,391, and Spartanburg County with 369,256. You can get the most current Census population data for all 46 South Carolina counties, sorted from the most populous counties in South Carolina to the least, according to the 2024 Population Estimates Program.

Sure, you can copy this list right into your favorite spreadsheet tool. Or save yourself formatting headaches and grab the latest South Carolina counties population data as a ready-to-use Excel™ file below. It's time to stop searching and start digging into data!