- Pendleton Street, Columbia, S.C.4
- Percival Road, Columbia, S.C.1
- Pickens County (S.C.)15
- Pickens Street, Columbia, S.C.12
- Pinehurst Road, Columbia, S.C.1
- Pinewood (S.C.)1
- Platt Springs Road, Columbia, S.C.2
- Platt Springs Road, Lexington, S.C.3
- Pontiac (S.C.)2
- Pulaski Street, Columbia, S.C.2
- Read Street, Columbia, S.C.13
- Reidville (S.C.)1
- Rembert (S.C.)2
- Rice Street, Columbia, S.C.2
- Richland County (S.C.)9,232
- Richland County (S.C.)
2
- Richland Street, Columbia, S.C.3
- Ridgeway (S.C.)3
- Rimini (S.C.)8
- Ripplemeyer Avenue, Columbia, S.C.5