| 1 | Willimantic CDP (west) | 36.4% |
| 2 | Groton city (north-northwest) | 33.6% |
| 3 | Norwich city (south) | 31.6% |
| 4 | Waterford CDP (north) | 31.2% |
| 5 | Willimantic CDP (east-southeast) | 27.5% |
| 6 | Waterford CDP (east-northeast) | 26.6% |
| 7 | Waterford CDP (east) | 25.2% |
| 8 | Norwich city (east-northeast) | 24.3% |
| 9 | South Windham CDP (north) | 24.3% |
| 10 | Waterford CDP (west-northwest) | 24.2% |
| 11 | Norwich city (south-southeast 2) | 21.6% |
| 12 | New London city (north) | 20.2% |
| 13 | South Windham CDP (northwest) | 18.5% |
| 14 | Long Hill CDP (east-southeast) | 14.4% |
| 15 | Gales Ferry CDP (north-northwest) | 14.2% |
| 16 | Norwich city (north-northeast) | 13.2% |
| 17 | Willimantic CDP (northeast) | 12.9% |
| 18 | Gales Ferry CDP (northeast) | 12.7% |
| 19 | Pawcatuck CDP | 12.5% |
| 20 | Oxoboxo River CDP (east-southeast) | 12.4% |
| 21 | New London city (east-southeast) | 12.2% |
| 22 | Waterford CDP (south-southeast) | 12.1% |
| 23 | Baltic CDP (north) | 11.7% |
| 24 | Mashantucket CDP (west) | 11.5% |
| 25 | Jewett City borough (west-northwest) | 11.1% |
| 26 | Norwich city (south-southeast 1) | 10.2% |
| 27 | Oxoboxo River CDP (north-northwest) | 9.9% |
| 28 | South Windham CDP (northeast) | 8.8% |
| 29 | Long Hill CDP (west-northwest) | 8.6% |
| 30 | New London city (southwest) | 8.3% |
| 31 | Baltic CDP (west-southwest) | 8.1% |
| 32 | Oxoboxo River CDP (east-northeast) | 7.8% |
| 33 | Waterford CDP (west-southwest) | 7.8% |
| 34 | Poquonock Bridge CDP | 7.7% |
| 35 | Niantic CDP (north-northwest) | 7.6% |
| 36 | Stonington borough (south-southwest) | 7.4% |
| 37 | Baltic CDP (east) | 7.3% |
| 38 | Conning Towers-Nautilus Park CDP (northeast) | 7.1% |
| 39 | Colchester CDP (north-northwest) | 6.7% |
| 40 | Oxoboxo River CDP (west) | 6.3% |
| 41 | Norwich city (south-southwest) | 6.1% |
| 42 | Mashantucket CDP (east) | 6% |
| 43 | Niantic CDP (south-southwest) | 6% |
| 44 | South Windham CDP (south-southwest) | 5.3% |
| 45 | Norwich city (north-northwest) | 5.2% |
| 46 | Groton Long Point borough | 5% |
| 47 | Gales Ferry CDP (south-southwest) | 4.6% |
| 48 | Jewett City borough (east-southeast) | 4.3% |
| 49 | Conning Towers-Nautilus Park CDP (southwest) | 4.1% |
| 50 | Old Mystic CDP | 3.9% |
| 51 | Niantic CDP (north) | 3.8% |
| 52 | Colchester CDP (west-southwest) | 3.7% |
| 53 | Stonington borough (east-southeast) | 3.5% |
| 54 | Niantic CDP (west-northwest) | 3.3% |
| 55 | Mashantucket CDP (south) | 3.1% |
| 56 | Niantic CDP (south-southeast) | 3% |
| 57 | Colchester CDP (east) | 2.8% |
| 58 | Stonington borough (northwest) | 2.6% |
| 59 | Mystic CDP (east-southeast) | 2.2% |
| 60 | Niantic CDP (east-northeast) | 2.1% |
| 61 | Oxoboxo River CDP (west-southwest) | 2% |
| 62 | Mashantucket CDP (northwest) | 1.6% |
| 63 | Norwich city (west-northwest) | 1.6% |
| 64 | Mystic CDP (west-northwest) | 1.2% |
| 65 | Groton city (south-southeast) | 0.8% |
| 66 | Oxoboxo River CDP (south-southeast) | 0.4% |