Illinois - Role: Building
| Fife Opera House |
| Fire Barn 5 |
| First Church of Lombard |
| First Congregational Church |
| First Congregational Church, Des Plaines |
| First Congregational Church of Austin |
| First Congregational Church of LaMoille |
| First Congregational Church of Sterling |
| First Congregational Church of Western Springs |
| First Methodist Church of Batavia |
| First National Bank Building |
| First Presbyterian Church |
| First State Bank of Manlius |
| First Universalist Church |
| Fischer Theater |
| Fisher Building |
| Fisher Building-Latham Block |
| Fisher-Nash-Griggs House |
| Fithian House |
| Fitzpatrick House |
| Flagg, Cornelius, Farmstead |
| Flagg Township Public Library |
| Flamingo-On-The-Lake Apartments |
| Flanagan, Judge, Residence |
| Flanders House |
| Flat Iron Building |
| Fletcher, Ruffin Drew, House |
| Florsheim, Harold, House |
| Flower, Lucy, Technical High School for Girls |
| Foley, Jennie, Building |
| Foley, Stephan A., House |
| Ford Airport Hanger |
| Ford, Sam and Ruth Van Sickle, House |
| Forest, The, and Annex |
| Fort Armstrong Hotel |
| Fort Armstrong Theatre |
| Fort Dearborn Hotel |
| Forum, The |
| Fountain Plaza Apartments |
| Four Nineteen Building |
| Fourth Presbyterian Church of Chicago |
| Fox River House |
| France Hotel |
| Francis, Frederick, Woodland Palace |
| Frangenheim, William, House |
| Franklin County Jail |
| Franks, Charles, House |
| Fredrick, Louis, House |
| Freeman-Brewer-Sawyer House |
| Freeman, Clarkson W., House |
| Frentess, Henry N., Farmstead |
| Fulkerson, Col. William H., Farmstead |
| Fuller, R. Buckminster, and Anne Hewlett Dome Home |
| Gage Group-Ascher, Keith, and Gage Buildings |
| Gale, Judge Jacob, House |
| Gale, Mrs. Thomas H., House |
| Gale, Walter, House |
| Galva Opera House |
| Gamma Phi Beta Sorority House |
| Gardner, Robert W., House |
| Garfield Elementary School |
| Garfield School |
| GAR Memorial Building |
| Garrison School |
| Garvey, Hugh M., House |
| Gauler, John, Houses |
| Geister, Christian, House |
| Geneva Country Day School |
| George, G.J., House |
| George, Ron, Round Barn |
| Georgian, The |
| Germania Club |
| Getty Tomb |
| Geyso, Mrs. Frank, Houses |
| Giant City State Park Lodge and Cabins |
| Gibbs, William and Caroline, House |
| Gifford-Davidson House |
| Glasner, William A., House |
| Glen Carbon Grade School |
| Glen Carbon Village Hall and Firehouse |
| Glenwood School |
| Glessner, John J., House |
| Glidden, Joseph F., House |
| Goddard Chapel |
| Godfrey, Benjamin, Memorial Chapel |
| Goldblatt Bros. Department Store |
| Gottschalk, Fred, Grocery Store |
| Grafton Bank |
| Grafton Boat Works |
| Graham Building |
| Graham, Cong. James M., House |
| Graham-Ginestra House |
| Grand Army of the Republic Memorial Hall |
| Grand Theater |
| Grange Hall |
| Granite City YMCA |
| Grant, Ulysses S., House |
| Granville-Mott House |
| Graue Mill |
| Gray-Watkins Mill |
Data from United States Park Service and Wikidata
