S.C. Code Ann. § 61-2-120

Biennial licenses and permits issued under this title expire according to the county where the licensed location is situated. The expiration dates are the last day of: (1) February in years which end in an: (a) odd number for Allendale, Bamberg, Barnwell, Beaufort, and Berkeley Counties; (b) even number for Charleston, Clarendon, Colleton, Dorchester, Georgetown, Hampton, Jasper, and Williamsburg Counties; (2) May in years which end in an: (a) odd number for Cherokee, Chester, Chesterfield, Darlington, Dillon, Fairfield, Florence, and Horry Counties; (b) even number for Lancaster, Marion, Marlboro, Union, and York Counties; (3) August in years which end in an: (a) odd number for Calhoun, Kershaw, Lee, Orangeburg, and Sumter Counties; (b) even number for Richland County; (4) November in years which end in an: (a) odd number for Abbeville, Aiken, Anderson, Edgefield, Greenville, and Greenwood Counties; (b) even number for Laurens, Lexington, McCormick, Newberry, Oconee, Pickens, Saluda, and Spartanburg Counties.