| 1 | Cedar Rapids city (east 3) | 32.4% |
| 2 | Cedar Rapids city (southeast 2) | 29.3% |
| 3 | Cedar Rapids city (south 2) | 28.4% |
| 4 | Cedar Rapids city (north-northeast 6) | 23.6% |
| 5 | Cedar Rapids city (west-southwest 1) | 21.6% |
| 6 | Marion city (south-southeast) | 21.2% |
| 7 | Hiawatha city (east-southeast) | 19% |
| 8 | Cedar Rapids city (southwest 4) | 18.5% |
| 9 | Cedar Rapids city (southwest 5) | 18.2% |
| 10 | Cedar Rapids city (south 1) | 17.9% |
| 11 | Cedar Rapids city (west-southwest 3) | 17.7% |
| 12 | Cedar Rapids city (north-northeast 5) | 17.6% |
| 13 | Cedar Rapids city (southwest 1) | 17% |
| 14 | Cedar Rapids city (north-northwest) | 16.2% |
| 15 | Cedar Rapids city (southeast 1) | 15.9% |
| 16 | Cedar Rapids city (north-northeast 4) | 14.7% |
| 17 | Cedar Rapids city (south 3) | 13.4% |
| 18 | Cedar Rapids city (northeast 1) | 13.2% |
| 19 | Cedar Rapids city (northeast 2) | 13.1% |
| 20 | Cedar Rapids city (east-northeast 1) | 11.5% |
| 21 | Cedar Rapids city (southeast 3) | 11.3% |
| 22 | Cedar Rapids city (west-southwest 2) | 10.7% |
| 23 | Cedar Rapids city (west-northwest) | 10.2% |
| 24 | Cedar Rapids city (west 2) | 9.8% |
| 25 | Cedar Rapids city (east 2) | 9.7% |
| 26 | Coggon city | 9.7% |
| 27 | Cedar Rapids city (south 4) | 9.4% |
| 28 | Cedar Rapids city (north-northeast 2) | 8.6% |
| 29 | Marion city (southwest) | 8.5% |
| 30 | Mount Vernon city (north) | 8.4% |
| 31 | Cedar Rapids city (north-northeast 3) | 7.7% |
| 32 | Cedar Rapids city (east-southeast) | 7.5% |
| 33 | Marion city (east-northeast) | 7.5% |
| 34 | Springville city | 7% |
| 35 | Cedar Rapids city (west 1) | 6.7% |
| 36 | Marion city (north-northwest) | 6.5% |
| 37 | Cedar Rapids city (southwest 3) | 6.4% |
| 38 | Marion city (south) | 6.1% |
| 39 | Marion city (west) | 6.1% |
| 40 | Marion city (northwest) | 5.8% |
| 41 | Cedar Rapids city (east 1) | 5.6% |
| 42 | Cedar Rapids city (east-northeast 2) | 5.6% |
| 43 | Cedar Rapids city (southwest 2) | 5.3% |
| 44 | Center Point city | 5.3% |
| 45 | Central City city | 4.7% |
| 46 | Robins city | 4.5% |
| 47 | Cedar Rapids city (northwest 2) | 3.9% |
| 48 | Marion city (east) | 3.9% |
| 49 | Marion city (north) | 3.9% |
| 50 | Cedar Rapids city (south 5) | 3.1% |
| 51 | Cedar Rapids city (northwest 1) | 3% |
| 52 | Mount Vernon city (south) | 2.7% |
| 53 | Hiawatha city (west-northwest) | 2.6% |
| 54 | Cedar Rapids city (north-northeast 1) | 1.4% |