| 1 | St. Charles city (northeast 2) | 11% |
| 2 | St. Charles city (south 2) | 11% |
| 3 | St. Paul city (east-southeast) | 10.4% |
| 4 | St. Charles city (southwest 2) | 9.8% |
| 5 | St. Charles city (northwest) | 9.6% |
| 6 | Weldon Spring city (south-southwest) | 9.4% |
| 7 | O'Fallon city (south) | 8.7% |
| 8 | St. Charles city (east-southeast) | 8% |
| 9 | Weldon Spring city (northeast) | 8% |
| 10 | Lake St. Louis city (southeast) | 7.6% |
| 11 | Portage Des Sioux city (west-northwest) | 7.6% |
| 12 | St. Charles city (southeast) | 7.4% |
| 13 | Cottleville city (west) | 7.3% |
| 14 | St. Peters city (southwest) | 7.3% |
| 15 | St. Charles city (southwest 1) | 6.8% |
| 16 | Weldon Spring city (southeast) | 6.8% |
| 17 | Cottleville city (south-southeast) | 6.4% |
| 18 | St. Peters city (east-southeast 1) | 6.4% |
| 19 | Lake St. Louis city (west) | 6.3% |
| 20 | Weldon Spring city (west-southwest) | 6.1% |
| 21 | St. Charles city (west-northwest) | 5.8% |
| 22 | Josephville village (east-northeast) | 5.6% |
| 23 | Cottleville city (southwest) | 5.4% |
| 24 | St. Paul city (northeast) | 5.4% |
| 25 | Dardenne Prairie city (southwest 1) | 5.3% |
| 26 | Cottleville city (north) | 5.2% |
| 27 | New Melle city (east-southeast 2) | 5.1% |
| 28 | O'Fallon city (east-northeast) | 5.1% |
| 29 | St. Charles city (south 1) | 5.1% |
| 30 | Weldon Spring city (north-northeast) | 5.1% |
| 31 | Portage Des Sioux city (east-northeast 2) | 4.7% |
| 32 | Dardenne Prairie city (northwest) | 4.6% |
| 33 | St. Peters city (east-northeast) | 4.5% |
| 34 | St. Charles city (northeast 1) | 4.4% |
| 35 | St. Peters city (west-southwest) | 4.4% |
| 36 | Dardenne Prairie city (southwest 2) | 4.2% |
| 37 | Cottleville city (east-southeast) | 4% |
| 38 | St. Paul city (west-southwest) | 3.9% |
| 39 | Weldon Spring city (west 2) | 3.9% |
| 40 | St. Peters city (northeast) | 3.8% |
| 41 | St. Peters city (west-northwest) | 3.7% |
| 42 | Portage Des Sioux city (west-southwest) | 3.5% |
| 43 | O'Fallon city (west-northwest) | 3.4% |
| 44 | St. Charles city (west) | 3.3% |
| 45 | Wentzville city (north) | 3.3% |
| 46 | Dardenne Prairie city (east-southeast) | 3.2% |
| 47 | Lake St. Louis city (north-northwest) | 3.2% |
| 48 | Weldon Spring city (north-northwest) | 3.2% |
| 49 | Cottleville city (northeast) | 3.1% |
| 50 | Dardenne Prairie city (north-northeast) | 3% |
| 51 | Lake St. Louis city (northeast) | 3% |
| 52 | Weldon Spring city (east-northeast) | 3% |
| 53 | Josephville village (south-southeast) | 2.9% |
| 54 | St. Charles city (north-northeast) | 2.9% |
| 55 | St. Peters city (north-northwest) | 2.9% |
| 56 | St. Charles city (north-northwest) | 2.8% |
| 57 | St. Peters city (east) | 2.8% |
| 58 | Flint Hill city (west-southwest) | 2.7% |
| 59 | St. Paul city (east) | 2.7% |
| 60 | Weldon Spring city (west 1) | 2.7% |
| 61 | Lake St. Louis city (south) | 2.5% |
| 62 | New Melle city (northwest 2) | 2.5% |
| 63 | Wentzville city (west-southwest) | 2.5% |
| 64 | St. Peters city (northwest) | 2.4% |
| 65 | Augusta town (southwest) | 2.2% |
| 66 | St. Peters city (east-southeast 2) | 2.2% |
| 67 | Portage Des Sioux city (southeast) | 2% |
| 68 | Dardenne Prairie city (northeast) | 1.8% |
| 69 | St. Peters city (west 1) | 1.8% |
| 70 | New Melle city (east-southeast 1) | 1.7% |
| 71 | St. Peters city (west 2) | 1.7% |
| 72 | New Melle city (northeast) | 1.6% |
| 73 | St. Paul city (northwest) | 1.6% |
| 74 | New Melle city (south-southwest) | 1.5% |
| 75 | St. Charles city (east) | 1.4% |
| 76 | Josephville village (northwest) | 1.3% |
| 77 | Portage Des Sioux city (south-southeast) | 1.2% |
| 78 | New Melle city (northwest 1) | 1.1% |
| 79 | St. Peters city (south) | 1.1% |
| 80 | Wentzville city (east-southeast) | 1.1% |
| 81 | St. Peters city (east-southeast 3) | 0.7% |
| 82 | St. Peters city (south-southeast) | 0.6% |
| 83 | Flint Hill city (east-northeast) | 0.5% |
| 84 | Portage Des Sioux city (east-northeast 1) | 0.3% |