District of Columbia - Area of significance: Social History
| Administration Building, Carnegie Institute of Washington |
| Alibi Club |
| All Souls Church, Unitarian |
| American Federation of Labor Building |
| American National Red Cross |
| American Peace Society |
| Anderson, Larz, House |
| Armed Forces Retirement Home-Washington |
| Asbury United Methodist Church |
| Bachelor Apartment House |
| Banneker Recreation Center |
| Bell, Alexander Graham, Laboratory |
| Benjamin Ogle Tayloe House |
| Blagden Alley-Naylor Court Historic District |
| Brodhead-Bell-Morton Mansion |
| Bruce, Blanche K., House |
| Bunche, Ralph, House |
| Cardozo, Francis L., Senior High School |
| Carnegie Endowment for International Peace |
| Cary, Mary Ann Shadd, House |
| Christ Church |
| Codman-Davis House |
| Congressional Cemetery |
| Congressional Club |
| Constitution Hall |
| Cosmos Club |
| Crummell, Alexander, School |
| de Veyra, Sofia Reyes Residence |
| District of Columbia Pound |
| District of Columbia War Memorial |
| Downtown Historic District |
| Dumbarton House |
| Duvall Manor Apartments |
| Eighteen Hundred Block Park Road, NW. |
| Eight Hundred Block of F St. NW |
| Evans-Tibbs House |
| Evermay |
| Fletcher Chapel |
| Folger Shakespeare Library |
| Forrest-Marbury House |
| Frederick Douglass National Historic Site |
| Friendship House-The Maples |
| Gallaudet College Historic District |
| Gallaudet College Historic District |
| Gallinger Municipal Hospital Psychopathic Ward |
| General Federation of Women's Clubs Headquarters |
| Georgetown Academy for Young Ladies |
| Glenwood Cemetery |
| Gompers, Samuel, House |
| Grimke, Charlotte Forten, House |
| Haw, John Stoddert, House |
| Heurich, Christian, Mansion |
| Highlands, The |
| Hillandale-Main Residence and Gatehouse |
| House of Mercy |
| Howard, Gen. Oliver Otis, House |
| Kalorama Park and Archeological District |
| Kameny, Dr. Franklin E., House |
| Langston Terrace Dwellings |
| Lansburgh, Julius, Furniture Co., Inc. |
| Law, Thomas, House |
| Lenthall Houses |
| Lincoln Industrial Mission-Lincoln Memorial Congregational Church |
| Lindens, The |
| Lucy Diggs Slowe Elementary School |
| Macfeely, Gen. Robert, House |
| Masonic Temple |
| Massachusetts Avenue Historic District |
| Mayfair Mansions Apartments |
| Meeting House of the Friends Meeting of Washington |
| Military Road School |
| Montrose Park |
| Moran Building |
| Morrison and Clark Houses |
| Morris Residence |
| Mount Vernon Square Historic District |
| Mount Vernon West Historic District |
| Mount Zion Cemetery |
| National Home for Destitute Colored Women and Children |
| National Presbyterian Church |
| Northumberland Apartments |
| Old Post Office and Clock Tower |
| Old Stone House |
| Old Swedish Ambassador’s Residence |
| On Leong Chinese Merchants Association |
| Pan American Union |
| Park View Christian Church |
| Park View Playground and Field House |
| Pennsylvania Avenue National Historic Site |
| Perkins, Frances, House |
| Perna Brothers' Chesapeake Street Houses |
| Pink Palace |
| President's House, Gallaudet College |
| Prince Hall Masonic Temple |
| Prospect House |
| Quarters A, Washington Navy Yard |
| Rock Creek Church Yard and Cemetery |
| Saint James Mutual Homes |
| Shackleton, Pauline “Polly” House |
| Sheridan-Kalorama Historic District |
Data from United States Park Service and Wikidata