| 1 | Waterford CDP (east) | 41.3% |
| 2 | Waterford CDP (west-northwest) | 28.4% |
| 3 | Norwich city (south-southwest) | 25.6% |
| 4 | Norwich city (south-southeast 2) | 21.4% |
| 5 | Waterford CDP (south-southeast) | 19.6% |
| 6 | Norwich city (east-northeast) | 19.4% |
| 7 | Long Hill CDP (east-southeast) | 18.1% |
| 8 | Norwich city (south) | 15.8% |
| 9 | Niantic CDP (north) | 15.6% |
| 10 | Long Hill CDP (west-northwest) | 15.1% |
| 11 | Waterford CDP (east-northeast) | 13.3% |
| 12 | Norwich city (south-southeast 1) | 12.9% |
| 13 | Poquonock Bridge CDP | 12.7% |
| 14 | Oxoboxo River CDP (east-northeast) | 12.3% |
| 15 | New London city (north) | 12.2% |
| 16 | New London city (east-southeast) | 12% |
| 17 | Mashantucket CDP (west) | 11.1% |
| 18 | Niantic CDP (north-northwest) | 11% |
| 19 | Norwich city (north-northwest) | 11% |
| 20 | Waterford CDP (north) | 10.8% |
| 21 | Willimantic CDP (west) | 10.6% |
| 22 | South Windham CDP (northwest) | 10% |
| 23 | Niantic CDP (west-northwest) | 9.4% |
| 24 | Niantic CDP (south-southwest) | 8.9% |
| 25 | Groton city (north-northwest) | 8.8% |
| 26 | Old Mystic CDP | 8.7% |
| 27 | Willimantic CDP (northeast) | 8.7% |
| 28 | Colchester CDP (west-southwest) | 8.4% |
| 29 | Norwich city (north-northeast) | 8.1% |
| 30 | Willimantic CDP (east-southeast) | 7.8% |
| 31 | Norwich city (west-northwest) | 7.4% |
| 32 | Mystic CDP (east-southeast) | 7.3% |
| 33 | Oxoboxo River CDP (south-southeast) | 7.2% |
| 34 | Oxoboxo River CDP (east-southeast) | 7% |
| 35 | Oxoboxo River CDP (west) | 6.8% |
| 36 | Conning Towers-Nautilus Park CDP (southwest) | 6.4% |
| 37 | New London city (southwest) | 6.3% |
| 38 | Gales Ferry CDP (south-southwest) | 5.8% |
| 39 | Groton Long Point borough | 5.8% |
| 40 | Stonington borough (east-southeast) | 5.5% |
| 41 | Waterford CDP (west-southwest) | 5.5% |
| 42 | Colchester CDP (north-northwest) | 5.2% |
| 43 | Gales Ferry CDP (northeast) | 5.1% |
| 44 | Mashantucket CDP (east) | 5% |
| 45 | South Windham CDP (south-southwest) | 4.8% |
| 46 | Niantic CDP (south-southeast) | 4.7% |
| 47 | Gales Ferry CDP (north-northwest) | 4.6% |
| 48 | Niantic CDP (east-northeast) | 4.6% |
| 49 | Mystic CDP (west-northwest) | 4.5% |
| 50 | Mashantucket CDP (south) | 4.4% |
| 51 | Colchester CDP (east) | 4.3% |
| 52 | Stonington borough (northwest) | 4.3% |
| 53 | Pawcatuck CDP | 4.2% |
| 54 | Oxoboxo River CDP (west-southwest) | 4.1% |
| 55 | South Windham CDP (north) | 3.9% |
| 56 | South Windham CDP (northeast) | 3.8% |
| 57 | Stonington borough (south-southwest) | 3.8% |
| 58 | Baltic CDP (north) | 3.7% |
| 59 | Mashantucket CDP (northwest) | 3.3% |
| 60 | Gales Ferry CDP (south-southeast) | 3.1% |
| 61 | Jewett City borough (west-northwest) | 3% |
| 62 | Conning Towers-Nautilus Park CDP (northeast) | 2.8% |
| 63 | Jewett City borough (east-southeast) | 2.7% |
| 64 | Oxoboxo River CDP (north-northwest) | 1.5% |
| 65 | Baltic CDP (east) | 1.4% |
| 66 | Baltic CDP (west-southwest) | 1.3% |
| 67 | Groton city (south-southeast) | 1.2% |