All - Architectural style - Italianate architecture
| Cupola House |
| Custer County Courthouse |
| Cutter, Second, A. P., House |
| Cuvier Press Club |
| Dacres Hotel |
| Dahle, Onon B. and Betsy, House |
| Dall, Andrew, Jr. and James, Houses |
| Damon House |
| Dana, James Dwight, House |
| Daniel, J. M. and Emily, House |
| Dansereau House |
| Darwin, Mary, House |
| Davis, Isaac, House |
| Davis, John A., House |
| Davison, Abner, House |
| Dawson Couty Jail |
| Deady Hall |
| Deane-Williams House |
| DeBow, James R., House |
| Decker House Hotel |
| DeLand, Minerva and Daniel, House |
| Delaware Building |
| Delaware County Courthouse |
| Dempster-Sloan House |
| Denham-Lacy House |
| Denniston-Steidle House |
| Denver and Rio Grande Western Railroad Depot |
| Derby, H. W., Building |
| Deslattes House |
| Deuscher, Henry P., House |
| Dewey Place |
| Dienger, Joseph, Building |
| Dilley, G. E., Building |
| Dinglewood |
| District #5 School House |
| Dixon-Globe Opera House-Robinson-Schwenn Building |
| Dixon, James, House |
| Doan House |
| Dodd-Hinsdale House |
| Dodge, Augustus Caesar, House |
| Domhoff Buildings |
| Donnell, William T., House |
| Dorhmann-Buckman House |
| Doughty Block |
| Dovel-Bowers House |
| Dowling House |
| Dowse, Rev. Edmund, House |
| Draughn-Moore House |
| Drewry-Mitchell-Moorer House |
| Dr. Trueblood House |
| Druhot, Alice, House |
| Ducrest Building |
| Duncan, Charles, House |
| Duncan Manor |
| Dunns Block |
| Dunn-Watkins House |
| Dunn, William and Phebe C., House |
| Dupree-Ratliff House |
| Durgin House |
| Durham, W. W., House |
| Dutton, James B., House |
| Dwelley, William, House |
| Earle, John M., House |
| Earl, Thomas, House |
| East 78th Street Houses |
| East Main Street Historic District |
| Eastman, William Pitt, House |
| Edgewood |
| Edwards, Frank G., House |
| Eisenhower Home |
| Elbert-Bates House |
| Elgin Block, The |
| Eliot Hall |
| Elizabeth Building |
| Ellis, Moses, House |
| Ellsworth, Benjamin, House |
| Elms Court |
| Elmwood |
| Elmwood Place |
| Elsner, John, House |
| Elson-Magnolia Flour Mill |
| Eminence, The |
| Emmel Building |
| Engine Company Number One |
| English, William, House |
| Evangelical and Reformed Church |
| Evans, Benjamin, House |
| Everhardt, W. H., House |
| Ewell Farm |
| Exchange Hall |
| Executive Mansion |
| Fairbanks House |
| Fairhaven Plantation House |
| Fairmount Historic District |
| Farmers State Bank |
| Farmersville Masonic Lodge No. 214, A.F. and A.M |
| Farnham, Fred and Lucia, House |
| Farrier, Amasa, Boardinghouse |
| Farrier, Amasa, House |
| Farwell, S. S., House |
Data from United States Park Service and Wikidata
