| hstreetcdc.org | H Street Community Development Corporation |
| nps.gov | Capitol Hill Historic District |
| chrs.org | Capitol Hill Restoration Society |
| champsdc.org | CHAMPS - Capitol Hill Association of Merchants and Professionals |
| capitolhillcommunityfoundation.org | Capitol Hill Community Foundation |
| capitolhill.org | Capitol Hill Map |
| barracksrow.org | Barracks Row Main Street |
| anc6a.org | ANC 6A |
| capitolhillhistory.org | The Ruth Ann Overbeck Capitol Hill History Project |
| oldcitycapitolhill.org | Old City Capitol Hill Neighborhood Association |
United States , Delaware , Georgetown