- Charleston in 18831
- Charleston, S.C. Indelible Photographs1
- Chester County Historical Collection, 1739-19978
- Chibbaro Stereograph Collection: 186u-1997420
- Circular Congregational Church Records, 1732-1796 (bulk 1800-1910s)428
- Circular letter, 1783 April 2 – From Guerard, Benjamin1
- Circular to 1st Sub-division, 1st Military District2
- City Engineers's Plat Book, 1671-1951256
- City Year Books for Charleston, South Carolina, 1880-195162
- City of Charleston Board of Architectural Review Photographs Collection105
- City of Charleston Collection113
- City of Charleston Zoning Ordinances1
- City of Charleston, SC, Report of the City Planning and Zoning Commission, Zone Maps10
- Civic Services Committee Papers1,127
- Civil Rights Films from Moving Image Research Collections20
- Civil War Era Maps7
- Civil War Illustrations5
- Civil War Newspaper Illustrations244
- Civil War Pamphlets450
- Civil War and Reconstruction Era Stereoscope Photographs of the Port Royal Region15