| 1 | Chester Center CDP (southwest) | 99.5% |
| 2 | Durham CDP (northwest) | 98.5% |
| 3 | Clinton CDP (west-northwest) | 98.1% |
| 4 | Durham CDP (east-southeast) | 95.1% |
| 5 | Westbrook Center CDP (northwest) | 94.4% |
| 6 | Moodus CDP (east-southeast) | 93.7% |
| 7 | Portland CDP (northwest) | 93.2% |
| 8 | Old Saybrook Center CDP (northeast) | 92.9% |
| 9 | Higganum CDP (west-southwest) | 92.2% |
| 10 | Durham CDP (south-southeast) | 91.8% |
| 11 | Essex Village CDP (south-southwest) | 90.1% |
| 12 | Portland CDP (east-northeast) | 90% |
| 13 | Old Saybrook Center CDP (east-southeast) | 89.7% |
| 14 | Essex Village CDP (north-northeast) | 88.4% |
| 15 | East Hampton CDP (northeast) | 87.9% |
| 16 | Clinton CDP (north) | 87.6% |
| 17 | Saybrook Manor CDP | 87% |
| 18 | Higganum CDP (east-northeast) | 86.1% |
| 19 | East Hampton CDP (southwest) | 85.8% |
| 20 | Durham CDP (south-southwest) | 85.4% |
| 21 | Portland CDP (west-northwest) | 85.2% |
| 22 | Old Saybrook Center CDP (north-northwest) | 84.9% |
| 23 | Old Saybrook Center CDP (southwest) | 84.4% |
| 24 | Lake Pocotopaug CDP | 83.6% |
| 25 | Moodus CDP (west-northwest) | 80.8% |
| 26 | Clinton CDP (southeast) | 77.2% |
| 27 | Clinton CDP (south) | 73.5% |
| 28 | Chester Center CDP (northeast) | 72.4% |
| 29 | Portland CDP (southeast) | 71.3% |
| 30 | Portland CDP (east-southeast) | 70.9% |
| 31 | Deep River Center CDP (northwest) | 68.6% |
| 32 | Deep River Center CDP (southeast) | 68.5% |
| 33 | Portland CDP (north-northwest) | 68.3% |
| 34 | Portland CDP (west-southwest) | 67.5% |
| 35 | Middletown city (east-southeast 2) | 66.6% |
| 36 | Westbrook Center CDP (west-southwest) | 65.9% |
| 37 | Middletown city (south) | 64.9% |
| 38 | Middletown city (west) | 44.9% |
| 39 | Middletown city (east) | 40% |
| 40 | Middletown city (east-southeast 1) | 33.5% |
| 41 | Portland CDP (south-southwest) | 30.6% |
| 42 | Middletown city (northwest) | 29% |
| 43 | Durham CDP (north-northwest) | 26.3% |
| 44 | Middletown city (northeast) | 11.5% |