National Historic District (0)
| A - Allen Place - Lincoln Street |
| B - Ann Street |
| C - Asylum Hill |
| D - Bloomfield Avenue |
| E - Buckingham Square |
| F - Capen Clark |
| G - Charter Oak Place |
| H - Clay Hill |
| I - Colt Industrial |
| J - Congress Street |
| K - Downtown North |
| L - Elm Street |
| M - Farmington Avenue |
| N - Frog Hollow |
| O - Goodwin Block |
| P - High Street |
| Q - Homestead Avenue |
| R - Jefferson Seymour |
| S - Lewis Street |
| T - Main Street |
| U - Main/Temple/Talcott |
| V - Pratt Street |
| W - Prospect Avenue |
| X - Seminary District |
| Y - Sigourney Square |
| Z - South Green |
| Z2 - Upper Albany |
| Z3 - West Boulevard |
| Z4 - Westend North |
| Z5 - Westend South |
| Z6 - Wethersfield Avenue |
| Z7 - Vine Street |
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