| 1 | Charleroi borough (northwest) | 34.9% |
| 2 | Charleroi borough (southeast) | 27.6% |
| 3 | California borough (east-southeast) | 21.9% |
| 4 | Washington city (northeast) | 21.9% |
| 5 | Midway borough | 18.8% |
| 6 | North Charleroi borough | 18.8% |
| 7 | East Washington borough | 18.5% |
| 8 | Monongahela city (west-northwest) | 18% |
| 9 | Donora borough | 17.4% |
| 10 | Wickerham Manor-Fisher CDP (east) | 16.8% |
| 11 | Fredericktown CDP | 16.6% |
| 12 | California borough (west-northwest) | 16.2% |
| 13 | Paris CDP | 16.2% |
| 14 | Claysville borough (south-southeast) | 15.8% |
| 15 | East Marianna CDP (east-southeast) | 15.6% |
| 16 | Houston borough | 15.6% |
| 17 | West Middletown borough | 15.1% |
| 18 | Joffre CDP | 14.6% |
| 19 | Long Branch borough | 14.6% |
| 20 | Bentleyville borough | 14.5% |
| 21 | Washington city (south-southeast) | 13.7% |
| 22 | Dunlevy borough | 13.5% |
| 23 | Burgettstown borough | 13.3% |
| 24 | Muse CDP (southeast) | 13.3% |
| 25 | Cokeburg borough | 12.7% |
| 26 | Green Hills borough (north-northeast) | 12.5% |
| 27 | Claysville borough (north-northwest) | 11.8% |
| 28 | Monongahela city (east-southeast) | 11.8% |
| 29 | Meadowlands CDP | 11.2% |
| 30 | Midland CDP (west-southwest) | 11% |
| 31 | Washington city (west-northwest) | 11% |
| 32 | Centerville borough (north-northwest) | 10.7% |
| 33 | East Marianna CDP (west-northwest) | 10.4% |
| 34 | Centerville borough (south-southeast) | 9.9% |
| 35 | Laboratory CDP (southwest) | 9.9% |
| 36 | Muse CDP (northwest) | 9.5% |
| 37 | Canonsburg borough | 9.3% |
| 38 | Wylandville CDP (northeast) | 9% |
| 39 | Wolfdale CDP (southeast) | 8.9% |
| 40 | Green Hills borough (south-southwest) | 8.2% |
| 41 | Cecil-Bishop CDP | 8% |
| 42 | New Eagle borough | 8% |
| 43 | Wylandville CDP (west-northwest) | 7.9% |
| 44 | Wolfdale CDP (northwest) | 7.3% |
| 45 | Elrama CDP (south-southeast) | 6.5% |
| 46 | McDonald borough | 6.5% |
| 47 | Wickerham Manor-Fisher CDP (west) | 6.4% |
| 48 | Laboratory CDP (east-southeast) | 5.9% |
| 49 | Hickory CDP | 5.5% |
| 50 | Midland CDP (east) | 5.5% |
| 51 | Van Voorhis CDP | 4.6% |
| 52 | Wylandville CDP (south) | 4.5% |
| 53 | Laboratory CDP (northwest) | 4.1% |
| 54 | Gastonville CDP | 3.7% |
| 55 | Thompsonville CDP (west-southwest) | 3.6% |
| 56 | Wolfdale CDP (south-southwest) | 3.6% |
| 57 | Midland CDP (east-northeast) | 2.7% |
| 58 | Elrama CDP (north-northwest) | 1.7% |
| 59 | Wolfdale CDP (east-northeast) | 1.5% |
| 60 | Thompsonville CDP (east-northeast) | 0.9% |
| 61 | Hendersonville CDP | 0.4% |
| 62 | Strabane CDP | 0% |