| 1 | Unincorporated (south-southeast 1) | 39.5% |
| 2 | Wescosville CDP (east) | 35.5% |
| 3 | Alburtis borough | 34.4% |
| 4 | Ancient Oaks CDP (south-southeast) | 34.2% |
| 5 | Breinigsville CDP (east-southeast) | 34.1% |
| 6 | Allentown city (west-southwest 2) | 34% |
| 7 | Allentown city (west-southwest 1) | 33.8% |
| 8 | Ancient Oaks CDP (north-northwest) | 33% |
| 9 | Unincorporated (northwest 2) | 30.9% |
| 10 | Bethlehem city (east-southeast) | 30.8% |
| 11 | Unincorporated (east-southeast 1) | 30.3% |
| 12 | Unincorporated (west-northwest) | 30.2% |
| 13 | Unincorporated (south) | 29.6% |
| 14 | Unincorporated (west 1) | 29.6% |
| 15 | Unincorporated (south-southwest) | 28.6% |
| 16 | Dorneyville CDP (east-southeast) | 28.4% |
| 17 | Unincorporated (east-southeast 2) | 28.1% |
| 18 | Trexlertown CDP | 27.7% |
| 19 | Dorneyville CDP (west-northwest) | 27% |
| 20 | Cetronia CDP | 26.6% |
| 21 | Unincorporated (south-southeast 2) | 26.1% |
| 22 | Schnecksville CDP (north-northwest) | 25.9% |
| 23 | Wescosville CDP (west) | 25.1% |
| 24 | Bethlehem city (south-southeast) | 24.7% |
| 25 | Fullerton CDP (west-northwest) | 24.7% |
| 26 | Allentown city (southwest 2) | 23.3% |
| 27 | Bethlehem city (north-northwest) | 23.2% |
| 28 | Hokendauqua CDP | 22.7% |
| 29 | Laurys Station CDP (southwest) | 22.3% |
| 30 | Unincorporated (southeast) | 22.2% |
| 31 | DeSales University CDP | 22.1% |
| 32 | Allentown city (south) | 22% |
| 33 | Allentown city (west) | 22% |
| 34 | Macungie borough | 22% |
| 35 | Unincorporated (west 2) | 21.7% |
| 36 | Emmaus borough (north-northwest) | 21.6% |
| 37 | Fullerton CDP (south) | 21.4% |
| 38 | Schnecksville CDP (south-southeast) | 21.3% |
| 39 | Bethlehem city (southwest) | 21.2% |
| 40 | Breinigsville CDP (west-northwest) | 20.6% |
| 41 | Allentown city (east-northeast 1) | 20.1% |
| 42 | Catasauqua borough | 19.8% |
| 43 | Allentown city (northeast 1) | 19.6% |
| 44 | Laurys Station CDP (northeast) | 19.6% |
| 45 | New Tripoli CDP | 19.6% |
| 46 | Coopersburg borough | 19.2% |
| 47 | Unincorporated (north) | 18.4% |
| 48 | Allentown city (northeast 2) | 18.3% |
| 49 | Emmaus borough (south-southeast) | 17.9% |
| 50 | Unincorporated (east) | 17.4% |
| 51 | Bethlehem city (northwest) | 16.8% |
| 52 | Coplay borough | 16.4% |
| 53 | Fullerton CDP (north-northeast) | 16.4% |
| 54 | Allentown city (south-southeast 1) | 16.2% |
| 55 | Allentown city (west-southwest 4) | 16.2% |
| 56 | Fountain Hill borough | 15.9% |
| 57 | Unincorporated (north-northeast) | 15.7% |
| 58 | Egypt CDP | 15.4% |
| 59 | Allentown city (southwest 1) | 15.3% |
| 60 | Unincorporated (east-northeast) | 15% |
| 61 | Unincorporated (northwest 1) | 15% |
| 62 | Allentown city (southeast) | 13.7% |
| 63 | Allentown city (north-northeast 1) | 13.5% |
| 64 | Allentown city (south-southeast 3) | 12.5% |
| 65 | Slatedale CDP | 12% |
| 66 | Allentown city (west-southwest 3) | 10.9% |
| 67 | Allentown city (north-northwest) | 10.8% |
| 68 | Allentown city (south-southeast 2) | 10.3% |
| 69 | Allentown city (west-northwest 2) | 9.6% |
| 70 | Fullerton CDP (east-southeast) | 9.2% |
| 71 | Allentown city (west-northwest 1) | 9.1% |
| 72 | Slatington borough | 9.1% |
| 73 | Allentown city (north-northeast 2) | 8.8% |
| 74 | Allentown city (northwest) | 7.6% |
| 75 | Allentown city (east-southeast) | 7.3% |
| 76 | Allentown city (east) | 7.2% |
| 77 | Allentown city (east-northeast 3) | 6.6% |
| 78 | Allentown city (east-northeast 2) | 5.5% |
| 79 | Allentown city (north-northeast 3) | 4.5% |
| 80 | Allentown city (north 2) | 3.4% |
| 81 | Allentown city (north 1) | 2.5% |