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Population of Counties in South Carolina (2024)

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2024 Population
Growth Since 2020
Area (mi²)
Density (/mi²)
Greenville County568,2277.77%786723Greenville County location
Charleston County429,3844.75%918468Charleston County location
Richland County428,7503.15%757566Richland County location
Horry County411,80916.41%1.1K363Horry County location
Spartanburg County367,44811.56%808455Spartanburg County location
Lexington County313,9516.41%699449Lexington County location
York County302,4396.48%681444York County location
Berkeley County265,48214.66%1.1K240Berkeley County location
Anderson County216,5006.03%714303Anderson County location
Beaufort County201,8117.45%576350Beaufort County location
Aiken County180,0326.42%1.1K168Aiken County location
Dorchester County173,6167.14%568306Dorchester County location
Florence County137,6880.64%801172Florence County location
Pickens County137,5204.43%497277Pickens County location
Lancaster County111,70615.65%549203Lancaster County location
Sumter County104,394-1.03%665157Sumter County location
Orangeburg County82,539-1.69%1.1K75Orangeburg County location
Oconee County82,2824.44%627131Oconee County location
Kershaw County71,9609.71%72799Kershaw County location
Laurens County69,7953.2%71398Laurens County location
Greenwood County69,6970.44%456153Greenwood County location
Georgetown County66,7935.17%81482Georgetown County location
Darlington County62,396-0.72%561111Darlington County location
Cherokee County57,3071.93%393146Cherokee County location
Chesterfield County44,3212.46%79955Chesterfield County location
Newberry County39,3354.25%63062Newberry County location
Colleton County39,1681.64%1.1K37Colleton County location
Jasper County35,10220.42%65554Jasper County location
Chester County32,4590.54%58156Chester County location
Clarendon County31,0810.78%60751Clarendon County location
Williamsburg County29,669-4.03%93432Williamsburg County location
Marion County28,545-1.86%48958Marion County location
Edgefield County28,25510.07%50156Edgefield County location
Dillon County27,649-2.22%40568Dillon County location
Union County26,519-2.44%51452Union County location
Marlboro County25,402-4.11%48053Marlboro County location
Abbeville County24,5301.09%49150Abbeville County location
Barnwell County20,423-0.79%54837Barnwell County location
Fairfield County20,394-2.36%68630Fairfield County location
Saluda County19,2622.31%45343Saluda County location
Hampton County18,108-2.2%56032Hampton County location
Lee County15,773-4.63%41038Lee County location
Calhoun County14,1750.43%38137Calhoun County location
Bamberg County12,998-1.98%39333Bamberg County location
McCormick County10,1416.55%35928McCormick County location
Allendale County7,320-7.74%40818Allendale County location
showing: 46 rows

There are 46 counties in South Carolina. As of 2019, South Carolina's most populous county is Greenville County, home of Greenville, with a population of 506,837. This represents growth of 11.95% since the last census. Greenville is followed by Richland County (411,592), Charleston County (401,438), Horry County (333,268), and Spartansburg County (306,854). These are the only counties of South Carolina with a population of more than 300,000 and all have experienced population growth of at least 6%. Of these counties, Horry County has experienced the most rapid growth of 23.23% since the census.

South Carolina Counties with Fewest Residents

The least populated county in South Carolina is Allendale County with a population of 9,002, down 13.02% from the 2010 census. McCormick County follows closely behind at 9,545 residents which represents a population growth of -6.54%. Other small counties in South Carolina with fewer than 15,000 people are Bamberg County (14,381) and Calhoun County (14,704). Both counties have also experienced negative population growth. All six counties in South Carolina with fewer than 20,000 residents have declined in population since the census.

South Carolina Counties with Rapid Growth

Horry County, the 4th most populated county in South Carolina, has experienced the most rapid growth since the census at 23.23% to a population of 333,268. Two other counties topped 20% growth: Berkeley County (21.77%) and Lancaster County (20.24%). Only five other counties experienced growth above 12%: York County (17.44%), Beaufort County (14.74%), Charleston County (14.36%), Jasper County (14.15%), and Dorchester County (13.81%).

Population of Counties in South Carolina (2024)

Lists of Counties in all States

  1. South Carolina Revenue and Fiscal Affairs Office
  2. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  3. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  4. American Community Survey (2009 - 2013)
  5. Census QuickFacts
  6. Historical Populations of States and Counties (1790 - 1990)