Ohio - Area of significance: Social History
| Dawes Arboretum, The |
| Dayton View Triangle Historic District |
| Dayton Women's Club |
| Dayton Young Men's Christian Association Building |
| Defiance Public Library |
| Delaware Public Library |
| Dew House |
| Doctors' Building |
| Downtown Mount Vernon Historic District |
| Dublin Christian Church |
| Dublin Veterinary Clinic |
| Dunbar Historic District |
| Dun, John, Homestead |
| Eagles Building |
| Eagles Temple |
| Eagles' Temple |
| East End Historic District |
| Eastern Hills Young Men's Christian Association (YMCA) |
| East Main Street Historic District |
| Edgecliff Area Historic Group |
| Eighteen Mile House |
| Eleanor B. Rainey Memorial Institute |
| Elks Club |
| Emmanuel's Evangelical Lutheran Church |
| Engine House No. 3 |
| Engine House No. 6 |
| Erie County Infirmary |
| Erie County Office Building |
| Euclid Avenue Temple-Liberty Hill Baptist Church |
| Eugene McKinley Memorial Pool |
| Evans, Wilson Bruce, House |
| Everal, John W., Farm Buildings |
| Exaltation-Elevation of the Holy Cross Church |
| Facer's Store |
| Fairfield County Children's Home |
| Fairfield County Infirmary |
| Fellowship Missionary Baptist Church |
| Fenway Hall |
| Fenwick Club Annex |
| Finney-Darrah House |
| Fire Blocks Historic District |
| First Universalist Church of Olmsted |
| Fitz Randolph-Rogers House |
| Five Mile House |
| Floraville Historic District |
| Florence Corners School |
| Follett-Moss-Moss Residences |
| Fort Amanda Site |
| Fox Hollow |
| Franklin Hotel |
| Franklin Township Hall |
| Fridley-Oman Farm |
| Fuller, Frances Ensign, House |
| Fulton Lodge No. 248 |
| Fulton-Presbyterian Cemetery |
| Garfield, President James A., Memorial |
| Garlick, Richard, House |
| Gaskins-Malany House |
| Gayer, Jacob, House |
| General Hospital Nurses' Home |
| Gibson House |
| Gilbert, Jane, House |
| Gist Settlement Historic District |
| Glendale Cemetery |
| Godwin-Knowles House |
| Goldsmith, Jacob, House |
| Goodyear Hall-Ohio Savings and Trust Company |
| Gorsuch, Ernest J., House |
| Grafton School |
| Grand Army of the Republic Memorial Hall |
| Grandview Cemetery |
| Grant Deming's Forest Hill Allotment Historic District |
| Greene Township Center |
| Green Township High School |
| Greenwood Cemetery |
| Greenwood Farm |
| Greenwood Farm |
| Griggs Grange No. 1467 |
| Griswold Memorial Young Women's Christian Association |
| Groveport Town Hall Historic Group |
| Gwinn Estate |
| Haines House |
| Hanna, Howard M., Jr., House |
| Hanna, Leonard C., Jr., Estate |
| Harvey, Eli, House |
| Harvey, Elizabeth, Free Negro School |
| Hayes, Rutherford B., House |
| Hay-McKinney and Bingham-Hanna House |
| Hendry, Francis, House |
| Henry, Robert W., House |
| Highland County Courthouse |
| Hine, Horace L., House |
| Hirons-Brown House |
| Hise, Daniel Howell, House |
| Holy Cross Lithuanian Roman Catholic Church |
| Holy Cross Monastery and Chapel |
| Holy Family Catholic Church |
| Hosford House |
| Hotel Ashtabula |
| Hotel Central |
Data from United States Park Service and Wikidata
