| 1 | Finley CDP (west-southwest) | 25.8% |
| 2 | Richland city (west) | 21.7% |
| 3 | Finley CDP (northwest) | 21.5% |
| 4 | Kennewick city (west-northwest) | 19.9% |
| 5 | West Richland city (southwest 1) | 19.8% |
| 6 | Richland city (southeast 2) | 19.7% |
| 7 | West Richland city (southwest 2) | 19.4% |
| 8 | Richland city (south) | 18.1% |
| 9 | Benton City city (south-southeast) | 17.3% |
| 10 | Richland city (north-northeast 1) | 16.9% |
| 11 | Richland city (north-northeast 2) | 16.7% |
| 12 | West Richland city (northeast) | 16.7% |
| 13 | West Richland city (south) | 14.9% |
| 14 | Finley CDP (east-southeast 2) | 14.8% |
| 15 | Finley CDP (east) | 14.7% |
| 16 | West Richland city (west) | 14.7% |
| 17 | West Richland city (east-northeast) | 14% |
| 18 | Finley CDP (west-northwest) | 12.6% |
| 19 | Kennewick city (west-southwest) | 12% |
| 20 | Benton City city (east-southeast) | 11.5% |
| 21 | Finley CDP (south-southeast) | 11.2% |
| 22 | Prosser city (south-southeast) | 11.2% |
| 23 | Richland city (south-southwest) | 11% |
| 24 | Finley CDP (east-northeast 1) | 10.5% |
| 25 | Richland city (southeast 1) | 10.5% |
| 26 | Finley CDP (east-southeast 1) | 10.2% |
| 27 | Finley CDP (east-northeast 3) | 9.5% |
| 28 | Richland city (northwest) | 9.3% |
| 29 | West Richland city (northwest) | 9.2% |
| 30 | Kennewick city (east-southeast 2) | 8.7% |
| 31 | Kennewick city (north-northeast) | 8.7% |
| 32 | Prosser city (north-northwest) | 8.5% |
| 33 | Benton City city (south-southwest) | 8.1% |
| 34 | Kennewick city (east-northeast) | 8% |
| 35 | Kennewick city (south-southeast) | 7.7% |
| 36 | Kennewick city (northwest) | 7% |
| 37 | Kennewick city (west) | 5.7% |
| 38 | Richland city (north-northwest) | 5.5% |
| 39 | Kennewick city (east-southeast 1) | 5.3% |
| 40 | Kennewick city (north-northwest) | 5.2% |
| 41 | Finley CDP (east-northeast 2) | 4.2% |
| 42 | West Richland city (east-southeast) | 3.4% |
| 43 | Kennewick city (east-southeast 3) | 2.7% |
| 44 | Benton City city (northwest) | 1% |