South Dakota - Area of significance: Architecture
| Byron, Lewis, House |
| Caldwell, W. A., House |
| Campbell, Gen. Charles T., House |
| Campbell Park Historic District of Huron |
| Canton Carnegie Library |
| Canton Lutheran Church |
| Carnegie Free Public Library |
| Carnegie Free Public Library |
| Carnegie Public Library |
| Carr, Anna, Homestead |
| Carr, Jefferson Davis, House |
| Carr No. 60 School |
| Cartford, Benjamin H., House |
| Casper Supply Company of SD |
| Cathedral Historic District |
| CCC Camp Custer Officers' Cabin |
| Central Dakota Flouring Mill Grain Elevator |
| Central Fire Station |
| Chambers, C. E., House |
| Chambers Dugout |
| Chapel in the Hills |
| Charles Mix County Courthouse |
| Chicago and Northwestern Depot |
| Chicago and Northwestern Railroad Depot |
| Chicago and North Western Roundhouse |
| Chicago, Milwaukee and St. Paul Depot |
| Chicago, Milwaukee, St. Paul and Pacific Railroad Depot |
| Chicago, Milwaukee, St. Paul, and Pacific Railroad Depot |
| Chicago Northwestern Depot |
| Chilson, Chil and Julia House |
| Church of Christ in LaRoche Township |
| Church of the Immaculate Conception |
| Cihak Farmstead |
| Citizens State Bank of Henry |
| Civilian Conservation Corp Camp F-10 |
| Clark Center Lutheran Church |
| Clark County Courthouse |
| Clay County Courthouse |
| Cobel, Ivan, House |
| Codington County Courthouse |
| Colgan, Arthur and Ellen, House |
| Colton House |
| Conde Municipal Building |
| Cook, Fayette, House |
| Corbin, James A., House |
| Coughlin Campanile |
| Coughlin House |
| Coughran, Edward, House |
| Court, Henry, House |
| Crawford-Pettyjohn House |
| Crawford, Robert A., House |
| Crystal Theatre |
| Curran, D. H. and Leah, House |
| Custer State Game Lodge |
| Custer State Park Museum |
| Dakota Club Library |
| Dakota Farmer Building |
| Dakota Wesleyan University |
| Daktoa Tin and Gold Mine |
| Dallas Carnegie Library |
| Daly, Matthew W., House |
| Daniels, E. J. and Alice, House |
| Davis, Amy A., House |
| Deadwood Historic District |
| Dean Motor Company |
| Deckert, Ludwig, House |
| DeGraff, Curt E., House |
| DeJong House |
| Dell Rapids Amphitheater |
| Dell Rapids Historic District |
| Dell Rapids Residential Historic District |
| Delmont Public School |
| Delmont State Bank |
| DeLong, Harrison, House |
| DeRouchey-Hageman Barn and Farmyard |
| Deuel County Courthouse and Jail |
| Dickens Round Barn |
| Dickey, Eleazer C. and Gwinnie, House |
| Dickey, Walter, House |
| Douglas County Courthouse and Auditor's Office |
| Downtown Salem Historic District |
| Downtown Vermillion Historic District |
| Doyle, Harold A. (H. A.), House |
| Drake, Hattie O. and Henry, Octagon House |
| Driskill, William D., House |
| Duncan Church |
| Dunlap Methodist Episcopal Church |
| East Highland Lutheran Church |
| Easton's Castle |
| Edgerton, Dr. William, House |
| Edmunds County Courthouse |
| Egan Park |
| Ellerman, Arthur C., House |
| Elrod, Gov. S. H., House |
| Elster, Anthon W., House |
| Emmanuel Episcopal Church |
| Emmanuel Lutheran Church and Cemetery |
| Emminger, Corson, Round Barn |
| Episcopal Church of All Angels |
| Erskine School |
Data from United States Park Service and Wikidata
