PlainCities

Counties · South Carolina

Counties of South Carolina

South Carolina has 46 counties. Greenville County is the largest with 583,125 residents in 2025. 32 of the 46 gained residents between 2020 and 2025 by the Census Bureau's estimates.

What counties are in South Carolina?

Sorted by the 2025 population estimate; sort by any column.

Counties of South Carolina: 2025 estimate, change since 2020, ACS 2020-2024 5-year estimates
Greenville County583,125+11.0%25123$76,932$299,000
Charleston County436,200+6.8%1999$88,494$489,100
Richland County434,956+4.5%1698$63,784$242,800
Horry County427,551+21.8%2078$66,880$287,700
Spartanburg County380,857+16.1%3987$66,234$233,300
Lexington County317,588+8.1%2192$77,408$234,500
York County306,887+8.9%1655$89,095$361,300
Berkeley County274,666+19.5%1548$84,358$310,300
Anderson County219,930+8.0%1951$66,651$231,900
Beaufort County204,433+9.3%1743$86,573$455,600
Aiken County181,515+7.5%1743$70,609$218,000
Dorchester County178,397+10.6%831$78,198$329,300
Pickens County139,198+5.9%1237$61,064$231,900
Florence County138,504+1.0%1036$58,305$177,900
Lancaster County114,296+19.0%1022$78,869$329,900
Sumter County105,067−0.5%1726$56,693$165,300
Oconee County83,775+6.6%1320$62,388$237,100
Orangeburg County83,177−1.2%2039$45,675$115,800
Kershaw County73,166+11.9%718$68,231$217,100
Laurens County71,848+6.4%1120$57,623$170,600
Greenwood County70,379+1.5%918$52,830$180,500
Georgetown County65,912+4.0%721$68,713$289,500
Darlington County62,888−0.0%819$48,581$158,200
Cherokee County58,275+3.6%616$50,288$142,000
Chesterfield County44,740+3.4%914$49,235$116,200
Newberry County39,561+4.9%810$61,780$173,300
Colleton County39,382+2.0%814$51,114$162,500
Jasper County38,533+33.7%47$65,613$325,500
Chester County33,001+2.2%711$52,458$158,300
Clarendon County31,043−0.3%812$52,401$158,000
Edgefield County29,808+16.2%57$73,029$202,700
Williamsburg County29,662−4.4%612$46,213$104,500
Marion County28,242−3.2%88$36,301$93,200
Dillon County27,458−3.0%79$46,605$85,400
Union County26,799−1.6%610$41,621$103,600
Marlboro County25,488−4.4%68$34,301$82,000
Abbeville County24,836+2.2%87$52,935$178,800
Barnwell County20,653+0.3%78$46,626$106,000
Fairfield County20,340−3.0%58$47,885$151,200
Saluda County19,680+3.9%56$51,009$146,500
Hampton County18,174−2.1%97$44,711$112,000
Lee County15,730−4.9%89$44,760$104,600
Calhoun County14,188+0.5%24$58,682$172,100
Bamberg County12,796−3.9%56$44,370$97,800
McCormick County10,215+7.2%73$55,798$168,700
Allendale County7,355−8.5%43$32,328$76,200

Source: PEP Vintage 2025 (CO-EST2025); American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Census population estimates

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections