Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Anacostia Senior High School | School | 8 | District of Columbia | 38 52 11 N | 076 58 57 W |
| Anacostia Station | Locale | 4 | District of Columbia | 38 52 09 N | 076 59 14 W |
| Analostan Boat Club (historical) | Building | 19 | District of Columbia | 38 53 51 N | 077 02 34 W |
| Anchor Tavern and Oyster House (historical) | Building | 14 | District of Columbia | 38 54 19 N | 077 03 30 W |
| Anderson Cottage | Building | 76 | District of Columbia | 38 56 09 N | 077 00 36 W |
| Anderson Hall | Building | 120 | District of Columbia | 38 56 09 N | 077 05 27 W |
| Anderson House Museum | Building | 23 | District of Columbia | 38 54 39 N | 077 02 51 W |
| Andrei Sakhorov Plaza | Park | 18 | District of Columbia | 38 54 16 N | 077 02 10 W |
| Andrew Jackson Downing Urn | Park | 9 | District of Columbia | 38 53 19 N | 077 01 32 W |
| Andrew W Mellon Auditorium | Building | 3 | District of Columbia | 38 53 33 N | 077 01 47 W |
| Anna Cooper Circle | Locale | 27 | District of Columbia | 38 54 57 N | 077 00 58 W |
| Annunciation Catholic Church | Church | 105 | District of Columbia | 38 55 48 N | 077 04 35 W |
| Anthony Bowen Branch YMCA | Building | 28 | District of Columbia | 38 54 54 N | 077 02 23 W |
| Anthony Bowen Elementary School | School | 3 | District of Columbia | 38 52 36 N | 077 00 46 W |
| Anthony Holmead Archeological Site | Locale | 43 | District of Columbia | 38 54 50 N | 077 02 57 W |
| Anthony Reintzel Building (historical) | Building | 21 | District of Columbia | 38 54 18 N | 077 03 57 W |
| Antioch Baptist Church | Church | 18 | District of Columbia | 38 54 17 N | 076 55 42 W |
| Anton Ruppert House | Building | 16 | District of Columbia | 38 55 03 N | 076 58 36 W |
| Apartment Building at 2225 N Street | Building | 16 | District of Columbia | 38 54 27 N | 077 02 58 W |
| Apex Theater (historical) | Building | 74 | District of Columbia | 38 56 41 N | 077 05 44 W |
| Apollo Hall (historical) | Building | 6 | District of Columbia | 38 53 45 N | 077 01 49 W |
| Apollo Statue | Park | 16 | District of Columbia | 38 53 49 N | 077 00 24 W |
| Apostolic Nunciature - The Holy See | Building | 70 | District of Columbia | 38 55 25 N | 077 03 54 W |
| Appleby Building | Building | | District of Columbia | 38 54 23 N | 076 59 52 W |
| Aqueduct Bridge (historical) | Bridge | 1 | District of Columbia | 38 54 08 N | 077 04 10 W |
| Aqueduct Bridge Piers | Locale | 1 | District of Columbia | 38 54 07 N | 077 04 12 W |
| Arboretum Recreation Center | Park | 21 | District of Columbia | 38 54 44 N | 076 58 18 W |
| Archbishop Carroll High School | School | 94 | District of Columbia | 38 56 26 N | 077 00 22 W |
| Archimedes Statue | Park | 16 | District of Columbia | 38 53 49 N | 077 00 24 W |
| Archives-Navy Memorial Metro Station | Locale | 8 | District of Columbia | 38 53 06 N | 077 01 19 W |
| Arena Stage | Building | 5 | District of Columbia | 38 52 38 N | 077 01 13 W |
| Argentine Embassy Building | Building | 27 | District of Columbia | 38 54 41 N | 077 02 32 W |
| Ariel Rios Federal Building | Building | 5 | District of Columbia | 38 53 42 N | 077 01 43 W |
| Arland D Williams Junior Memorial Bridge | Bridge | 1 | District of Columbia | 38 52 31 N | 077 02 24 W |
| Arlington Bridge Equestrian Statues | Park | 9 | District of Columbia | 38 53 19 N | 077 03 07 W |
| Arlington Hotel (historical) | Building | 19 | District of Columbia | 38 54 04 N | 077 02 04 W |
| Arlington Memorial Bridge | Bridge | 1 | District of Columbia | 38 53 14 N | 077 03 20 W |
| Armed Forces Retirement Home - Washington | Hospital | 76 | District of Columbia | 38 56 09 N | 077 00 36 W |
| Armenian Apostolic Church of Saint Marys | Church | 102 | District of Columbia | 38 57 18 N | 077 04 54 W |
| Armenian Earthquake Statue | Park | 9 | District of Columbia | 38 53 43 N | 077 02 22 W |
| Armory Square | Locale | 5 | District of Columbia | 38 53 25 N | 077 01 22 W |
| Armory Square Hospital (historical) | Hospital | 4 | District of Columbia | 38 53 23 N | 077 01 14 W |
| Armsleigh Park (historical) | Populated Place | 117 | District of Columbia | 38 56 43 N | 077 04 37 W |
| Armstrong Adult Education Center | School | 21 | District of Columbia | 38 54 32 N | 077 00 48 W |
| Armstrong Technical School | School | 27 | District of Columbia | 38 54 55 N | 077 01 16 W |
| Army and Navy Club | Locale | 19 | District of Columbia | 38 54 06 N | 077 02 16 W |
| Army and Navy Club Building (historical) | Building | 20 | District of Columbia | 38 54 03 N | 077 02 20 W |
| Army Medical Museum and Library (historical) | Building | 91 | District of Columbia | 38 58 26 N | 077 01 56 W |
| Army War College | School | 3 | District of Columbia | 38 51 48 N | 077 01 01 W |
| Arsenal Monument | Cemetery | 19 | District of Columbia | 38 52 53 N | 076 58 47 W |
| Art Barn | Building | 30 | District of Columbia | 38 56 25 N | 077 03 12 W |
| Art Museum of the Americas | Building | 6 | District of Columbia | 38 53 34 N | 077 02 28 W |
| Arthur M Sackler Gallery | Building | 10 | District of Columbia | 38 53 17 N | 077 01 34 W |
| Arthur Stanley House | Building | 29 | District of Columbia | 38 54 51 N | 077 03 13 W |
| Arthur Vining Downing Statue | Park | 8 | District of Columbia | 38 53 18 N | 077 01 30 W |
| Artists Mart (historical) | Building | 27 | District of Columbia | 38 54 29 N | 077 03 49 W |
| Arts and Industries Building | Building | 7 | District of Columbia | 38 53 17 N | 077 01 27 W |
| Arts Club of Washington | Building | 22 | District of Columbia | 38 54 06 N | 077 02 44 W |
| Arts of Peace Statues | Park | 8 | District of Columbia | 38 53 24 N | 077 03 06 W |
| Arts of War Statue | Park | 9 | District of Columbia | 38 53 18 N | 077 03 06 W |
| Asbury Building | Building | 108 | District of Columbia | 38 56 14 N | 077 05 26 W |
| Asbury Methodist Church | Church | 21 | District of Columbia | 38 54 07 N | 077 01 39 W |
| Ascension and Saint Agnes Episcopal Church | Church | 28 | District of Columbia | 38 54 17 N | 077 01 42 W |
| Ascension Chapel | Church | 58 | District of Columbia | 38 56 12 N | 076 59 09 W |
| Ascension Sculpture | Park | 20 | District of Columbia | 38 53 55 N | 077 02 48 W |
| Asension Episcopal Church (historical) | Church | 15 | District of Columbia | 38 53 59 N | 077 01 34 W |
| Ashburton House | Building | 19 | District of Columbia | 38 54 01 N | 077 02 07 W |
| Assemblys Church | Church | 14 | District of Columbia | 38 54 02 N | 077 01 10 W |
| Association of American Geographers Building | Building | 26 | District of Columbia | 38 54 45 N | 077 02 13 W |
| Association of Oldest Inhabitants Building | Building | 7 | District of Columbia | 38 53 36 N | 077 02 35 W |
| Assumption School | School | 50 | District of Columbia | 38 50 29 N | 077 00 15 W |
| Asylum Square | Locale | 9 | District of Columbia | 38 53 10 N | 076 58 29 W |
| Atlantic Building | Building | 11 | District of Columbia | 38 53 50 N | 077 01 30 W |
| Atlas Building | Building | 11 | District of Columbia | 38 53 49 N | 077 01 26 W |
| Atonement Lutheran Church | Church | 38 | District of Columbia | 38 55 02 N | 077 00 31 W |
| Atonement Seminary | School | 95 | District of Columbia | 38 56 23 N | 077 00 18 W |
| Auditors Building Complex | Building | 9 | District of Columbia | 38 53 11 N | 077 01 59 W |
| Augusta Apartment Building | Building | 22 | District of Columbia | 38 54 19 N | 077 00 50 W |
| Augustana Lutheran Church | Church | 35 | District of Columbia | 38 55 06 N | 077 02 09 W |
| Augustines School | School | 29 | District of Columbia | 38 54 48 N | 077 01 60 W |
| Augustinian College | School | 67 | District of Columbia | 38 56 15 N | 077 00 20 W |
| Austrian Legation Building | Building | 33 | District of Columbia | 38 54 49 N | 077 03 08 W |
| Authority of Law Sculpture | Park | 27 | District of Columbia | 38 53 23 N | 077 00 21 W |
| Avalon Playground | Park | 51 | District of Columbia | 38 51 48 N | 076 58 43 W |
| Avalon Theater | Building | 101 | District of Columbia | 38 57 55 N | 077 04 33 W |
| Avenue Grand Theater (historical) | Building | 24 | District of Columbia | 38 53 06 N | 076 59 52 W |
| Avenue House (historical) | Building | 5 | District of Columbia | 38 53 37 N | 077 01 21 W |
| Aztec Fountain | Park | 5 | District of Columbia | 38 53 33 N | 077 02 27 W |
| B'Nai B'Rith Klutznick Museum | Building | 20 | District of Columbia | 38 54 22 N | 077 02 18 W |
| Babcock Lakes (historical) | Lake | 7 | District of Columbia | 38 53 24 N | 077 02 19 W |
| Babcock-Macomb House | Building | 78 | District of Columbia | 38 55 30 N | 077 04 02 W |
| Bachelor Apartment House | Building | 21 | District of Columbia | 38 54 01 N | 077 02 28 W |
| Backus Middle School | School | 38 | District of Columbia | 38 57 14 N | 076 59 48 W |
| Backus Recreation Center | Park | 38 | District of Columbia | 38 57 14 N | 076 59 48 W |
| Balch House | Building | 27 | District of Columbia | 38 54 24 N | 077 04 00 W |
| Bald Eagle Hill | Summit | 51 | District of Columbia | 38 49 18 N | 077 00 37 W |
| Bald Eagle Memorial | Park | 6 | District of Columbia | 38 53 46 N | 077 01 59 W |
| Bald Eagle Recreation Center | Park | 49 | District of Columbia | 38 49 07 N | 077 00 37 W |
| Ballard House | Building | | District of Columbia | 38 54 24 N | 076 59 50 W |
| Ballard North | Building | | District of Columbia | 38 54 34 N | 076 59 33 W |
| Ballard West | Building | | District of Columbia | 38 54 32 N | 076 59 35 W |
| Ballou Recreation Center | Park | 49 | District of Columbia | 38 50 23 N | 077 00 05 W |
| Ballou School To Aid Youth | School | 49 | District of Columbia | 38 50 23 N | 077 00 05 W |
| Ballou Senior High School | School | 49 | District of Columbia | 38 50 23 N | 077 00 05 W |
| Baltimore and Ohio Railroad Freight Station | Locale | 16 | District of Columbia | 38 54 08 N | 077 00 06 W |
| Baltimore and Potomac Railroad Station (historical) | Locale | 3 | District of Columbia | 38 53 28 N | 077 01 15 W |
| Bancroft Elementary School | School | 59 | District of Columbia | 38 56 04 N | 077 02 24 W |
| Bancroft House (historical) | Building | 19 | District of Columbia | 38 54 00 N | 077 02 12 W |
| Bancroft Playground | Park | 59 | District of Columbia | 38 56 04 N | 077 02 24 W |
| Bancroft Recreation Center | Building | 56 | District of Columbia | 38 56 05 N | 077 02 24 W |