Wisconsin - Role: Building
| Concordia Mill |
| Congregation Beth Israel Synagogue |
| Connor Lumber and Land Company Store |
| Cook, Alexander, House |
| Cook-Rutledge House |
| Cooksville Cheese Factory |
| Cook, Thomas, House |
| Coole Park Manor |
| Cooley, Eli R., House |
| Cooper-Gillies House |
| Copeland-Ryder Company |
| Cords, Erwin, House |
| Cornelius, Charles and Theresa, House |
| Corwith, J. W., Livery |
| Cotton House |
| Coumbe, John, Farmstead |
| Courier Building |
| Courtney, J. B., Woolen Mills |
| Court Street Methodist Church |
| Cox, Angie Williams, Library |
| Crawford County Courthouse |
| Crescent Roller Mills |
| Crist, J. W., House |
| Crosby Block |
| Crosby, James B., House |
| Crosse, Dr. Charles G., House |
| Cudahy Chicago and North Western Railway Depot |
| Culton, Charles L., House |
| Cumberland Public Library |
| Cunningham, Bert and Mary, Round Barn |
| Cupola House |
| Curtin, Jeremiah, House |
| Curtis, David W. and Jane, House |
| Curtis-Kittleson House |
| Cushing Land Agency Building |
| Cutler, Morris, House |
| Cutter, Judson C., House |
| Dahinden, Edward J., House |
| Dahle, Henry L. and Sarah, House |
| Dahle, Herman B. and Anne Marie, House |
| Dahle, Onon B. and Betsy, House |
| Dahl, Martin K., House |
| Daily Northwestern Building |
| Daly, Elizabeth, House |
| Damon, Lowell, House |
| Dana, George and Mary Agnes, House |
| Danes Hall |
| Daniels Town Hall |
| Dansk Evangelical Lutheran Kirke |
| Darling, Frederick L., House |
| Darlington Carnegie Free Library |
| Daubner, George H. and Frances, House |
| Davidson Hall |
| Davies, Edward and Mary, House |
| Davis, H. R., House |
| Day, Dr. Fisk Holbrook, House |
| Day, Isham, House |
| Dean, Erastus, Farmstead |
| Dean, Nathaniel W., House |
| De Jean House |
| Delafield Fish Hatchery |
| Delavan Post Office |
| Dells Mill |
| Delong, Henry and Elizabeth, House |
| DeLong, Homer B., House |
| Denniston House |
| De Pere Public Library |
| Derleth, August W., House |
| Desmond-Farnham-Hustis House |
| Dessert, Joseph, Library |
| Dettman, Art, Fishing Shanty |
| Dick, Christian, Block |
| Dickinson, Decatur and Kate, House |
| Dinesen-Motzfeldt-Hettinger Log House |
| District School No. 1 |
| Dodge, Edward, House |
| Dodge Mining Camp Cabin |
| Donald, John Sweet, Farmstead |
| Douglas County Courthouse |
| Douglass-Stevenson House |
| Dousman Hotel |
| Dousman Inn |
| Dover Street School and Social Center |
| Dow, John T., House |
| Dowling Apartment Building |
| Downsville Lodge No. 1961 I.O.O.F. |
| Draize, August, Farmstead |
| Driver, Thomas, and Sons Manufacturing Company |
| Drohman Cabin |
| Drummond Business Block |
| Drummond, David, House |
| Dunbar, C. F., House |
| Dunlap, Adam, Farmstead |
| Dunlap Square Building |
| Dunroven House |
| Durand Free Library |
| Dwelley, William, House |
| Dwinnell, George, House |
| Eager Free Public Library |
| Eagle Bluff Lighthouse |
Data from United States Park Service and Wikidata
