| 1 | Groton Long Point borough | 38% |
| 2 | Oxoboxo River CDP (west) | 35.1% |
| 3 | Mystic CDP (east-southeast) | 34.6% |
| 4 | Stonington borough (south-southwest) | 34.6% |
| 5 | Groton city (south-southeast) | 32.3% |
| 6 | Niantic CDP (north-northwest) | 32.2% |
| 7 | Mystic CDP (west-northwest) | 31.7% |
| 8 | New London city (east-southeast) | 29.6% |
| 9 | Niantic CDP (east-northeast) | 29.5% |
| 10 | Colchester CDP (west-southwest) | 28.1% |
| 11 | New London city (southwest) | 28% |
| 12 | Long Hill CDP (west-northwest) | 27.5% |
| 13 | Niantic CDP (south-southeast) | 26.8% |
| 14 | Niantic CDP (north) | 26.6% |
| 15 | Stonington borough (east-southeast) | 25.4% |
| 16 | Gales Ferry CDP (northeast) | 24.9% |
| 17 | Norwich city (north-northwest) | 24.6% |
| 18 | Niantic CDP (west-northwest) | 24% |
| 19 | Old Mystic CDP | 23.5% |
| 20 | Niantic CDP (south-southwest) | 22.7% |
| 21 | Waterford CDP (south-southeast) | 22.3% |
| 22 | Long Hill CDP (east-southeast) | 21.9% |
| 23 | Pawcatuck CDP | 21.9% |
| 24 | Stonington borough (northwest) | 21.9% |
| 25 | Oxoboxo River CDP (south-southeast) | 21.7% |
| 26 | Colchester CDP (east) | 21.6% |
| 27 | Conning Towers-Nautilus Park CDP (southwest) | 21.4% |
| 28 | Norwich city (south-southwest) | 20.9% |
| 29 | Gales Ferry CDP (south-southwest) | 20.4% |
| 30 | Mashantucket CDP (east) | 20.3% |
| 31 | South Windham CDP (south-southwest) | 20.3% |
| 32 | Colchester CDP (north-northwest) | 20.1% |
| 33 | Oxoboxo River CDP (west-southwest) | 20% |
| 34 | Groton city (north-northwest) | 19.6% |
| 35 | Oxoboxo River CDP (east-southeast) | 18.5% |
| 36 | Oxoboxo River CDP (north-northwest) | 18% |
| 37 | Norwich city (west-northwest) | 17.8% |
| 38 | Waterford CDP (east-northeast) | 16.8% |
| 39 | Willimantic CDP (northeast) | 16.7% |
| 40 | Conning Towers-Nautilus Park CDP (northeast) | 16.6% |
| 41 | Mashantucket CDP (south) | 16.6% |
| 42 | Baltic CDP (west-southwest) | 15% |
| 43 | Poquonock Bridge CDP | 14.3% |
| 44 | Norwich city (south-southeast 1) | 13.8% |
| 45 | Mashantucket CDP (northwest) | 13.7% |
| 46 | South Windham CDP (northwest) | 13.5% |
| 47 | Norwich city (south-southeast 2) | 13.1% |
| 48 | Norwich city (east-northeast) | 12.7% |
| 49 | Waterford CDP (west-southwest) | 12.7% |
| 50 | Jewett City borough (east-southeast) | 12.6% |
| 51 | Gales Ferry CDP (south-southeast) | 12.1% |
| 52 | South Windham CDP (northeast) | 12.1% |
| 53 | Waterford CDP (north) | 11.6% |
| 54 | Norwich city (north-northeast) | 10.7% |
| 55 | Willimantic CDP (west) | 10.5% |
| 56 | Gales Ferry CDP (north-northwest) | 10.4% |
| 57 | Baltic CDP (north) | 10.2% |
| 58 | Baltic CDP (east) | 10% |
| 59 | Jewett City borough (west-northwest) | 9.8% |
| 60 | New London city (north) | 9.2% |
| 61 | Oxoboxo River CDP (east-northeast) | 9% |
| 62 | Waterford CDP (east) | 7.6% |
| 63 | Willimantic CDP (east-southeast) | 7.6% |
| 64 | Waterford CDP (west-northwest) | 7.2% |
| 65 | Norwich city (south) | 7.1% |
| 66 | Mashantucket CDP (west) | 6.5% |
| 67 | South Windham CDP (north) | 6.4% |