| 1 | Gridley city | 53.2% |
| 2 | Butte Valley CDP (east) | 37.7% |
| 3 | Oroville city (south-southwest) | 32.2% |
| 4 | Durham CDP (northeast) | 30.5% |
| 5 | Palermo CDP | 30.3% |
| 6 | Nord CDP (south-southeast 2) | 29.9% |
| 7 | Nord CDP (southeast 2) | 29.8% |
| 8 | Thermalito CDP (west) | 29.5% |
| 9 | Nord CDP (north-northeast 2) | 29.1% |
| 10 | Richvale CDP (south-southeast) | 28.2% |
| 11 | Nord CDP (south-southeast 1) | 26.5% |
| 12 | Oroville East CDP | 26.5% |
| 13 | Durham CDP (north) | 26.2% |
| 14 | Richvale CDP (north-northwest) | 24.6% |
| 15 | Cohasset CDP (west-southwest 1) | 22.4% |
| 16 | Durham CDP (north-northeast) | 22.4% |
| 17 | Nord CDP (southeast 1) | 22.4% |
| 18 | Nord CDP (northwest) | 21.2% |
| 19 | Chico city (west) | 19.8% |
| 20 | Cohasset CDP (south 1) | 19.6% |
| 21 | Stirling City CDP (northeast) | 19.6% |
| 22 | Oroville city (north-northwest) | 19.5% |
| 23 | Cherokee CDP (north) | 19.4% |
| 24 | Honcut CDP (southwest) | 18.7% |
| 25 | Nord CDP (east-northeast) | 18.6% |
| 26 | Oroville city (east) | 18.3% |
| 27 | Nord CDP (north-northeast 1) | 17.7% |
| 28 | Chico city (east-southeast) | 17.6% |
| 29 | Nord CDP (southwest) | 17.4% |
| 30 | Chico city (north) | 17.3% |
| 31 | Honcut CDP (north-northeast) | 16.9% |
| 32 | Cohasset CDP (south 2) | 16.3% |
| 33 | Cohasset CDP (northwest) | 15.8% |
| 34 | Nord CDP (east-southeast) | 15.8% |
| 35 | Nord CDP (west-northwest) | 15% |
| 36 | Honcut CDP (east-southeast) | 14.7% |
| 37 | Cohasset CDP (west-southwest 2) | 14.1% |
| 38 | Thermalito CDP (east) | 13.9% |
| 39 | Cohasset CDP (south-southeast) | 13.4% |
| 40 | Concow CDP (west-northwest) | 13.4% |
| 41 | Durham CDP (south) | 13.4% |
| 42 | Butte Meadows CDP | 12.7% |
| 43 | Cherokee CDP (south) | 12.6% |
| 44 | Nord CDP (north-northwest) | 9.4% |
| 45 | Kelly Ridge CDP | 8.6% |
| 46 | Paradise town (southwest) | 7.9% |
| 47 | Concow CDP (east) | 7% |
| 48 | Forbestown CDP | 6.3% |
| 49 | Paradise town (northeast) | 6% |
| 50 | Stirling City CDP (southwest) | 4.3% |
| 51 | Cohasset CDP (north-northeast) | 3.8% |
| 52 | Magalia CDP | 3.4% |
| 53 | Butte Valley CDP (west) | 2.9% |
| 54 | Concow CDP (west) | 2.8% |