County	Founded	Parent County	County Seat
Abbeville	1785	District 96	Abbeville
Aiken	1871	Edgefield, Orangeburg, Barnwell, Lexington	Aiken
Allendale	1919	Barnwell, Hampton	Allendale
Anderson	1826	Pendleton Dist.	Anderson
Bamberg	1897	Barnwell	Bamberg
Barnwell	1798	Orangeburg Dist.	Barnwell
Beaufort	1769	Original Dist.	Beaufort
Berkeley	1882	Charleston	Moncks Corner
Calhoun	1908	Lexington, Orangeburg	St. Matthews
Charleston	1769	Original Dist.	Charleston
Cherokee	1897	Union, York, Spartanburg	Gaffney
Chester	1785	Craven, Camden Dist.	Chester
Chesterfield	1798	Cheraws Dist.	Chesterfield
Clarendon	1855	Sumter Dist.	Manning
Colleton	1798	Charleston Dist.	Walterboro
Darlington	1798	Cheraws Dist.	Darlington
Dillon	1910	Marion	Dillon
Dorchester	1897	Berkeley, Colleton	St. George
Edgefield	1785	District 96	Edgefield
Fairfield	1798	Camden Dist.	Winnsboro
Florence	1888	Clarendon, Darlington, Marion	Florence
Georgetown	1769	Original Dist.	Georgetown
Greenville	1798	Washington Dist.	Greenville
Greenwood	1897	Abbeville, Edgefield	Greenwood
Hampton	1878	Beaufort	Hampton
Horry	1802	Georgetown Dist.	Conway
Jasper	1912	Beaufort, Hampton	Ridgeland
Kershaw	1798	Camden Dist.	Camden
Lancaster	1798	Camden Dist.	Lancaster
Laurens	1785	District 96	Laurens
Lee	1902	Darlington, Sumter, Kershaw	Bishopville
Lexington	1804	Orangeburg Dist.	Lexington
Marion	1798	Georgetown Dist.	Marion
Marlboro	1798	Cheraws Dist.	Bennettsville
McCormick	1916	Greenwood, Abbeville	McCormick
Newberry	1785	District 96	Newberry
Oconee	1868	Pickens	Walhalla
Orangeburg	1769	Original Dist.	Orangeburg
Pickens	1825	Pendleton Dist.	Pickens
Richland	1799	Kershaw Dist.	Columbia
Saluda	1896	Edgefield	Saluda
Spartanburg	1785	District 96	Spartanburg
Sumter	1798	Camden Dist.	Sumter
Union	1785	District 96	Union
Williamsburg	1802	Georgetown Dist.	Kingstree
York	1785	Camden, Pinkney Dist.	York