South Dakota - Significance region: Local
| Campbell, Gina Smith, Bathhouse |
| Canton Carnegie Library |
| Canton Lutheran Church |
| Carnegie Free Public Library |
| Carnegie Free Public Library |
| Carnegie Public Library |
| Carnegie Public Library |
| Carnegie Public Library of Tyndall |
| Carpenter Hotel |
| Carr, Anna, Homestead |
| Carr, Jefferson Davis, House |
| Carr No. 60 School |
| Cartford, Benjamin H., House |
| Casper Supply Company of SD |
| CCC Camp Custer Officers' Cabin |
| Centerville Township Bridge Number S-18 |
| Central Block |
| Central Dakota Flouring Mill Grain Elevator |
| Central Fire Station |
| Chamberlain Bridge |
| Chambers, C. E., House |
| Chapel in the Hills |
| Charles Mix County Courthouse |
| Cherry Rock Park Bridge |
| Chicago and North Western Railroad Bridge |
| Chicago and Northwestern Railroad Depot |
| Chicago and North Western Roundhouse |
| Chicago, Milwaukee and St. Paul Depot |
| Chicago, Milwaukee, and St. Paul Railroad Depot |
| Chicago, Milwaukee, St. Paul and Pacific Railroad Depot |
| Chicago, Milwaukee, St. Paul, and Pacific Railroad Depot |
| Chicago Northwestern Depot |
| Childstown Township Bridge Number S-15 |
| Chilson, Chil and Julia House |
| Church of Christ in LaRoche Township |
| Church of the Immaculate Conception |
| Citizens State Bank of Henry |
| Clark Center Lutheran Church |
| Clark County Courthouse |
| Clay County Courthouse |
| Cobel, Ivan, House |
| Codington County Courthouse |
| Cold Springs Schoolhouse |
| Colgan, Arthur and Ellen, House |
| Colton House |
| Conde Municipal Building |
| Cook, Fayette, House |
| Coolidge Sylvan Theatre |
| Corbin, James A., House |
| Coughlin Campanile |
| Coughlin House |
| Coughran, Edward, House |
| Court, Henry, House |
| Covered Wagon Resort |
| Crawford, Robert A., House |
| Crystal Theatre |
| Curran, D. H. and Leah, House |
| Custer State Park Museum |
| Dakota Club Library |
| Dakota Farmer Building |
| Daktoa Tin and Gold Mine |
| Dallas Carnegie Library |
| Dalton Township Bridge |
| Daly, Matthew W., House |
| Daniels, E. J. and Alice, House |
| Davis, Amy A., House |
| Dean Motor Company |
| DeGraff, Curt E., House |
| Dell Rapids Amphitheater |
| Dell Rapids Bridge |
| Dell Rapids Residential Historic District |
| Dell Rapids Warming House |
| Delmont Public School |
| Delmont Pumphouse |
| Delmont State Bank |
| DeLong, Harrison, House |
| DeRouchey-Hageman Barn and Farmyard |
| Deuel County Courthouse and Jail |
| Dickey, Eleazer C. and Gwinnie, House |
| Dickey, Walter, House |
| Ditchrider House |
| Doland Commercial Historic District |
| Douglas County Courthouse and Auditor's Office |
| Downtown Salem Historic District |
| Downtown Vermillion Historic District |
| Doyle, Harold A. (H. A.), House |
| Drake, Frank and Sarah, Claim House |
| Drees Brothers General Mechandise |
| Driskill, William D., House |
| Duck Creek Lutheran Church and Cemetery |
| Duncan Church |
| Dunlap Methodist Episcopal Church |
| East Highland Lutheran Church |
| Easton's Castle |
| East Site Fire Station and Branch Library |
| Edgerton, Dr. William, House |
| Edmunds County Courthouse |
| Egan Park |
| Ellerman, Arthur C., House |
| Elster, Anthon W., House |
Data from United States Park Service and Wikidata
