S.C. Code § 16-7-110
No person over sixteen years of age shall appear or enter upon any lane, walk, alley, street, road, public way or highway of this State or upon the public property of the State or of any municipality or county in this State while wearing a mask or other device which conceals his identity. Nor shall any such person demand entrance or admission to or enter upon the premises or into the enclosure or house of any other person while wearing a mask or device which conceals his identity. Nor shall any such person, while wearing a mask or device which conceals his identity, participate in any meeting or demonstration upon the private property of another unless he shall have first obtained the written permission of the owner and the occupant of such property.
S.C. Code § 16-7-110