Illinois - Role: Building
| Crenshaw House |
| Creole House |
| Crow Island School |
| Cumberland County Courthouse |
| Cumberland Presbyterian Church |
| Cunningham, Andrew, Farm |
| Curtis, Elijah P., House |
| Curtiss-Wright Aeronautical University Building |
| Curtiss-Wright Hangars 1 and 2 |
| Dale Building |
| Dana, Susan Lawrence, House |
| Danville Public Library |
| Davis, David, III & IV, House |
| Davis Theater |
| Dawes, Charles Gates, House |
| Dawson Brothers Plant |
| Dearborn Station |
| Deere, John, House |
| Deere, John, House and Shop |
| Deerpath Inn |
| Delaware Building |
| Dell Rhea's Chicken Basket |
| Delta Kappa Epsilon Fraternity House |
| Delta Upsilon Fraternity House |
| Dement-Zinser House |
| Dempster Street Station |
| Denhart Bank Building |
| Denkmann-Hauberg House |
| De Priest, Oscar Stanton, House |
| Dewes, Francis J., House |
| Dewey House |
| Dilg, Herbert A., House |
| Dilworth, Robert, House |
| Dorhmann-Buckman House |
| Downey Building |
| Drake Hotel |
| Draser, George, Jr., House |
| Drucker, Robert and Suzanne, House |
| Drummond, William E., House |
| Dryden, George B., House |
| Dubin, Henry, House |
| Dulaney, Robert L., House |
| Duncan, Joseph, House |
| Duncan Manor |
| Dunham, Arthur J., House |
| Dunnan-Hampton House |
| Du Page County Courthouse |
| Dupont, John, House |
| Durant House |
| Durell, William Franklin and Rebecca, House |
| Duvall-Ash Farmstead |
| Dwight Chicago and Alton Railroad Depot |
| Dycus, Floyd and Glenora, House |
| Eagle Hotel |
| East Dubuque School |
| East Park Towers |
| East Waterford School |
| Ebenezer Methodist Episcopal Chapel and Cemetery |
| Ebenezer Missionary Baptist Church |
| Edgar County Courthouse |
| Edgewater Beach Apartments |
| Edwards Place |
| Edwardsville Chapter House |
| Effingham County Courthouse |
| Egyptian Theatre |
| Eighth Regiment Armory |
| Eldorado City Hall |
| Eldred, James John, House |
| Elgin Academy |
| Elgin National Watch Company Observatory |
| Elgin Tower Building |
| Eli and Jeanne Lipman House |
| Elizabeth Place |
| Ellwood Mansion |
| El Paso Public Library |
| Ely, Mrs. C. Morse, House |
| Emerson-Keith House |
| Emery, Jr., William H., House |
| Emmanuel Episcopal Church |
| Emmel Building |
| Emmert-Zippel House |
| Episcopal Church of the Atonement and Parish House, The |
| Epworth Methodist Episcopal Church |
| Eureka College Administration and Chapel |
| Evanston Lakeshore Historic District |
| Evanston Towers |
| Evert House |
| Exchange Bank |
| Executive Mansion |
| Fabyan Villa |
| Fagen, Mildred and Abel, House |
| Fairbanks, Morse and Company Building |
| Fairbury City Hall |
| Fairview Sanatorium |
| Farm House |
| Farnsworth House |
| Fehr, Charles, Round Barn |
| Felt, Cyrus, House |
| Field, Marshall, Garden Apartments |
| Field Museum of Natural History |
Data from United States Park Service and Wikidata
