| 1 | Shiloh village (northeast) | 34.8% |
| 2 | O'Fallon city (west-northwest) | 32.8% |
| 3 | O'Fallon city (east-northeast) | 28.3% |
| 4 | Rentchler CDP (southeast) | 27.8% |
| 5 | Swansea village (east) | 26.9% |
| 6 | O'Fallon city (north) | 26.8% |
| 7 | Caseyville village (south) | 26.3% |
| 8 | O'Fallon city (southeast) | 25.2% |
| 9 | Shiloh village (east-southeast) | 24.5% |
| 10 | Shiloh village (northwest) | 23.4% |
| 11 | Belleville city (northeast) | 23.2% |
| 12 | Millstadt village (north) | 23.2% |
| 13 | Smithton village (south-southeast) | 22.4% |
| 14 | Millstadt village (north-northeast) | 21.6% |
| 15 | Lebanon city (north-northeast) | 21.3% |
| 16 | Rentchler CDP (north-northwest) | 21.2% |
| 17 | Swansea village (northeast) | 21.2% |
| 18 | Scott AFB CDP (northeast) | 21.1% |
| 19 | Fairview Heights city (west) | 21% |
| 20 | New Athens village | 21% |
| 21 | Scott AFB CDP (southwest) | 20.9% |
| 22 | Lebanon city (north) | 20.6% |
| 23 | Shiloh village (south-southwest) | 20.4% |
| 24 | Mascoutah city | 20.3% |
| 25 | Fairview Heights city (east) | 20.2% |
| 26 | O'Fallon city (south) | 20.2% |
| 27 | Smithton village (north-northwest) | 19.9% |
| 28 | Shiloh village (west-southwest) | 19.5% |
| 29 | Belleville city (west-northwest) | 18.8% |
| 30 | Freeburg village | 18.1% |
| 31 | East Carondelet village (southeast) | 17.7% |
| 32 | Millstadt village (south) | 17.6% |
| 33 | Swansea village (southwest) | 17.3% |
| 34 | Rentchler CDP (west) | 16.9% |
| 35 | Swansea village (west-northwest) | 16.1% |
| 36 | Caseyville village (south-southwest) | 15.9% |
| 37 | Caseyville village (east-northeast) | 15.1% |
| 38 | East St. Louis city (north) | 14.8% |
| 39 | Lebanon city (south) | 14.5% |
| 40 | Millstadt village (west-northwest) | 14.2% |
| 41 | Fairview Heights city (north) | 13.1% |
| 42 | Belleville city (southeast) | 11.9% |
| 43 | Brooklyn village (northwest) | 11.4% |
| 44 | Sauget village (west-southwest 2) | 11.4% |
| 45 | East Carondelet village (northwest) | 11% |
| 46 | Belleville city (northwest) | 10.6% |
| 47 | Brooklyn village (south-southeast) | 10.5% |
| 48 | Caseyville village (northeast) | 9.6% |
| 49 | Brooklyn village (northeast) | 9.2% |
| 50 | East St. Louis city (west-northwest) | 9.1% |
| 51 | Belleville city (south-southwest) | 9% |
| 52 | Brooklyn village (south) | 9% |
| 53 | Caseyville village (west-southwest) | 8.5% |
| 54 | Belleville city (east) | 8.1% |
| 55 | Darmstadt CDP | 7.7% |
| 56 | Rentchler CDP (northwest) | 7.5% |
| 57 | Fairmont City village (north) | 6.9% |
| 58 | Caseyville village (west) | 6.4% |
| 59 | Cahokia Heights city | 6.1% |
| 60 | Sauget village (west-southwest 1) | 5.8% |
| 61 | Sauget village (north-northeast) | 4.6% |
| 62 | Sauget village (east) | 3.6% |
| 63 | Washington Park village (east-northeast) | 3.3% |
| 64 | Caseyville village (north) | 1.5% |
| 65 | East St. Louis city (south-southeast) | 0.4% |
| 66 | Fairmont City village (south) | 0.3% |
| 67 | Washington Park village (west-northwest) | 0.1% |