| 1 | Cedar Rapids city (north-northeast 2) | 45.4% |
| 2 | Cedar Rapids city (north-northeast 1) | 43.3% |
| 3 | Cedar Rapids city (northwest 1) | 39.6% |
| 4 | Marion city (northwest) | 36.2% |
| 5 | Marion city (north) | 33.5% |
| 6 | Marion city (east-northeast) | 31.8% |
| 7 | Cedar Rapids city (north-northwest) | 30.8% |
| 8 | Cedar Rapids city (east 2) | 30.5% |
| 9 | Cedar Rapids city (south 5) | 29.6% |
| 10 | Robins city | 29% |
| 11 | Cedar Rapids city (north-northeast 4) | 27.9% |
| 12 | Hiawatha city (west-northwest) | 27.9% |
| 13 | Cedar Rapids city (east-northeast 2) | 27.6% |
| 14 | Marion city (southwest) | 26.9% |
| 15 | Cedar Rapids city (east 1) | 26.7% |
| 16 | Cedar Rapids city (northwest 2) | 26.1% |
| 17 | Marion city (west) | 25.9% |
| 18 | Cedar Rapids city (north-northeast 6) | 25.6% |
| 19 | Cedar Rapids city (north-northeast 3) | 25.3% |
| 20 | Cedar Rapids city (southeast 2) | 25.1% |
| 21 | Marion city (north-northwest) | 25.1% |
| 22 | Mount Vernon city (north) | 24.9% |
| 23 | Cedar Rapids city (northeast 1) | 24% |
| 24 | Cedar Rapids city (southeast 1) | 23.3% |
| 25 | Cedar Rapids city (north-northeast 5) | 22% |
| 26 | Cedar Rapids city (east-southeast) | 20.8% |
| 27 | Cedar Rapids city (west 1) | 20.4% |
| 28 | Mount Vernon city (south) | 20.4% |
| 29 | Marion city (east) | 20.3% |
| 30 | Hiawatha city (east-southeast) | 20% |
| 31 | Coggon city | 19.7% |
| 32 | Cedar Rapids city (northeast 2) | 19.4% |
| 33 | Cedar Rapids city (southwest 3) | 19.1% |
| 34 | Cedar Rapids city (east-northeast 1) | 18.5% |
| 35 | Springville city | 18.2% |
| 36 | Cedar Rapids city (west 2) | 18.1% |
| 37 | Center Point city | 17.9% |
| 38 | Marion city (south) | 17.8% |
| 39 | Cedar Rapids city (west-northwest) | 17.7% |
| 40 | Central City city | 17.1% |
| 41 | Cedar Rapids city (southwest 5) | 17% |
| 42 | Cedar Rapids city (south 1) | 16.4% |
| 43 | Cedar Rapids city (west-southwest 2) | 16.2% |
| 44 | Cedar Rapids city (southwest 2) | 14.5% |
| 45 | Cedar Rapids city (south 2) | 13% |
| 46 | Cedar Rapids city (east 3) | 12.7% |
| 47 | Cedar Rapids city (southeast 3) | 12.4% |
| 48 | Cedar Rapids city (west-southwest 3) | 12.3% |
| 49 | Cedar Rapids city (southwest 4) | 12.1% |
| 50 | Marion city (south-southeast) | 12.1% |
| 51 | Cedar Rapids city (southwest 1) | 11.5% |
| 52 | Cedar Rapids city (south 3) | 10.6% |
| 53 | Cedar Rapids city (west-southwest 1) | 10% |
| 54 | Cedar Rapids city (south 4) | 6.9% |