| 1 | Ansonia city (south-southeast 2) | 21.9% |
| 2 | Waterbury city (southeast 1) | 21.3% |
| 3 | Waterbury city (west) | 20.4% |
| 4 | Waterbury city (south-southwest 2) | 18.8% |
| 5 | Terryville CDP (southwest) | 15.6% |
| 6 | Waterbury city (east-southeast 1) | 15% |
| 7 | Waterbury city (south-southwest 1) | 13.8% |
| 8 | Waterbury city (east-southeast 2) | 13.3% |
| 9 | Bristol city (southwest) | 13% |
| 10 | Waterbury city (south 1) | 12.8% |
| 11 | Terryville CDP (southeast) | 12% |
| 12 | Thomaston CDP (northwest) | 11.8% |
| 13 | Bristol city (east-northeast) | 11.4% |
| 14 | Bristol city (southeast) | 11.4% |
| 15 | Waterbury city (northwest 2) | 11.3% |
| 16 | Naugatuck borough (north-northeast 2) | 11.2% |
| 17 | Waterbury city (south 2) | 11.2% |
| 18 | Watertown CDP (southeast) | 11.2% |
| 19 | Bethlehem Village CDP | 11.1% |
| 20 | Heritage Village CDP (east) | 11.1% |
| 21 | Bristol city (south-southwest 1) | 11% |
| 22 | Heritage Village CDP (west-southwest) | 10.9% |
| 23 | Cheshire Village CDP (south-southwest) | 10.6% |
| 24 | Bristol city (west) | 10.1% |
| 25 | Derby city (north) | 10% |
| 26 | Heritage Village CDP (north-northeast) | 9.1% |
| 27 | Naugatuck borough (north) | 8.8% |
| 28 | Waterbury city (northeast) | 8.8% |
| 29 | Waterbury city (northwest 1) | 8.8% |
| 30 | Bristol city (northeast) | 8.7% |
| 31 | Waterbury city (south-southeast) | 8.6% |
| 32 | Oakville CDP (south-southeast 2) | 8.4% |
| 33 | Oakville CDP (northwest) | 8.2% |
| 34 | Woodbury Center CDP (west) | 8.1% |
| 35 | Cheshire Village CDP (west-northwest 3) | 8% |
| 36 | Woodbury Center CDP (northwest) | 7.9% |
| 37 | Oakville CDP (north 2) | 7.8% |
| 38 | Bristol city (east-southeast) | 7.5% |
| 39 | Shelton city (west-northwest) | 7.5% |
| 40 | Bristol city (northwest) | 7.4% |
| 41 | Shelton city (south-southeast) | 7.2% |
| 42 | Oakville CDP (south-southwest) | 7% |
| 43 | Thomaston CDP (west) | 7% |
| 44 | Waterbury city (north-northwest) | 7% |
| 45 | Naugatuck borough (north-northwest) | 6.9% |
| 46 | Oakville CDP (south-southeast 1) | 6.8% |
| 47 | Thomaston CDP (east) | 6.8% |
| 48 | Cheshire Village CDP (north-northeast) | 6.7% |
| 49 | Waterbury city (southeast 2) | 6.7% |
| 50 | Naugatuck borough (north-northeast 3) | 6.5% |
| 51 | Terryville CDP (west) | 6.5% |
| 52 | Woodbury Center CDP (east) | 6.5% |
| 53 | Bristol city (north-northeast) | 6.4% |
| 54 | Derby city (east-southeast) | 6.3% |
| 55 | Derby city (west) | 6.3% |
| 56 | Naugatuck borough (west) | 6.3% |
| 57 | Cheshire Village CDP (west-northwest 2) | 6% |
| 58 | Naugatuck borough (west-southwest) | 6% |
| 59 | Watertown CDP (northwest) | 5.8% |
| 60 | Cheshire Village CDP (east) | 5.3% |
| 61 | Cheshire Village CDP (west-northwest 1) | 5.3% |
| 62 | Oakville CDP (north-northwest 2) | 5.3% |
| 63 | Derby city (west-northwest) | 5.2% |
| 64 | Shelton city (east-northeast) | 5.2% |
| 65 | Cheshire Village CDP (southeast) | 5% |
| 66 | Shelton city (east-southeast) | 5% |
| 67 | Naugatuck borough (north-northeast 1) | 4.8% |
| 68 | Waterbury city (north 1) | 4.8% |
| 69 | Shelton city (west-southwest) | 4.3% |
| 70 | Naugatuck borough (east) | 4.2% |
| 71 | Naugatuck borough (south-southwest) | 4.2% |
| 72 | Derby city (south-southeast) | 4.1% |
| 73 | Ansonia city (north) | 4% |
| 74 | Ansonia city (north-northwest) | 3.7% |
| 75 | Woodbury Center CDP (south-southeast) | 3.7% |
| 76 | Bristol city (north) | 3.4% |
| 77 | Ansonia city (southwest) | 3.2% |
| 78 | Oakville CDP (north-northwest 1) | 3.2% |
| 79 | Terryville CDP (east) | 3.1% |
| 80 | Thomaston CDP (southeast) | 3.1% |
| 81 | Cheshire Village CDP (east-northeast) | 2.7% |
| 82 | Naugatuck borough (east-northeast 2) | 2.5% |
| 83 | Derby city (southeast) | 2.4% |
| 84 | Oakville CDP (southeast) | 2.4% |
| 85 | Terryville CDP (north-northeast) | 2.4% |
| 86 | Shelton city (north-northwest) | 2.3% |
| 87 | Cheshire Village CDP (north-northwest) | 2.2% |
| 88 | Ansonia city (south-southeast 1) | 2% |
| 89 | Naugatuck borough (southwest) | 1.9% |
| 90 | Bristol city (south-southwest 2) | 1.6% |
| 91 | Waterbury city (north 2) | 1.6% |
| 92 | Naugatuck borough (south) | 0.7% |
| 93 | Naugatuck borough (south-southeast) | 0.6% |
| 94 | Naugatuck borough (east-northeast 1) | 0.4% |
| 95 | Bristol city (north-northwest) | 0% |
| 96 | Cheshire Village CDP (south-southeast) | 0% |
| 97 | Derby city (northwest) | 0% |
| 98 | Oakville CDP (north 1) | 0% |