South Dakota Cities
- Cactus Flat, SD
- Cameron Colony, SD
- Camp Crook, SD
- Camrose Colony, SD
- Canistota, SD
- Canning, SD
- Canova, SD
- Canton, SD
- Capa, SD
- Caputa, SD
- Carlock, SD
- Carpenter, SD
- Carter, SD
- Carthage, SD
- Cascade Springs, SD
- Castle Rock, SD
- Castlewood, SD
- Cavour, SD
- Cedar Butte, SD
- Cedar Canyon, SD
- Cedar Grove Colony, SD
- Centerville, SD
- Central City, SD
- Chamberlain, SD
- Chance, SD
- Chancellor, SD
- Chase, SD
- Chautauqua, SD
- Chelsea, SD
- Cherry Creek, SD
- Chester, SD
- Cheyenne Crossing, SD
- Claire City, SD
- Claremont, SD
- Claremont Colony, SD
- Clark, SD
- Clark Colony, SD
- Clayton, SD
- Clear Lake, SD
- Clearfield, SD
- Clearfield Colony, SD
- Cloverleaf Colony, SD
- Coal Springs, SD
- Collins Colony, SD
- Colman, SD
- Colome, SD
- Colonial Pine Hills, SD
- Colton, SD
- Columbia, SD
- Conata, SD
- Conde, SD
- Corn Creek, SD
- Corona, SD
- Corsica, SD
- Corson, SD
- Cottonwood, SD
- Council House, SD
- Cow Creek, SD
- Crandall, SD
- Crandon, SD
- Craven, SD
- Creighton, SD
- Cresbard, SD
- Creston, SD
- Crocker, SD
- Crook City, SD
- Crooks, SD
- Crow Lake, SD
- Custer, SD
- Cuthbert, SD
