| Units |
| National Historical Parks | Chesapeake and Ohio Canal (Multi-State) |
| National Historic Sites | Carter G. Woodson |
| Fords Theatre | |
| Frederick Douglass | |
| Mary McLeod | |
| Pennsylvania Avenue | |
| National Memorials | Dwight D. Eisenhower Memorial |
| Franklin Delano Roosevelt | |
| Korean War Veterans | |
| Lincoln Memorial | |
| Theodore Roosevelt Island | |
| Thomas Jefferson Memorial | |
| Washington Monument | |
| World War I Memorial | |
| National Monuments | Belmont-Paul Women's Rights |
| National Scenic Trails | Potomac Heritage (Multi-State) |
| Other Sites | Constitution Gardens |
| National Capital Parks - East (Multi-State) | |
| National Mall and Memorial Parks | |
| President's Park (White House) | |
| Rock Creek Park |
| Non-Units |