| 1 | Waterford CDP (southeast) | 46% |
| 2 | Goose Creek Village CDP (east) | 45.4% |
| 3 | Countryside CDP (south-southeast) | 45.1% |
| 4 | Oak Grove CDP (south-southwest) | 44.6% |
| 5 | Goose Creek Village CDP (north-northwest) | 44.4% |
| 6 | Broadlands CDP (north-northwest) | 43.8% |
| 7 | Purcellville town (west-southwest) | 43.8% |
| 8 | Broadlands CDP (south-southeast) | 43.6% |
| 9 | Lowes Island CDP (north-northeast) | 42.9% |
| 10 | Dulles Town Center CDP (north-northwest) | 42.4% |
| 11 | Lansdowne CDP (southeast) | 42.4% |
| 12 | Lowes Island CDP (east-southeast) | 42.2% |
| 13 | Brambleton CDP (north) | 41.8% |
| 14 | Leesburg town (south-southwest) | 41.7% |
| 15 | Round Hill town | 41.5% |
| 16 | Aldie CDP (east) | 41% |
| 17 | Goose Creek Village CDP (southwest) | 40.6% |
| 18 | Stone Ridge CDP (east-southeast 2) | 40.4% |
| 19 | Loudoun Valley Estates CDP (north-northeast) | 40.3% |
| 20 | Stone Ridge CDP (west-northwest) | 40.3% |
| 21 | Countryside CDP (east) | 39.8% |
| 22 | Belmont CDP (north-northeast) | 39.6% |
| 23 | Goose Creek Village CDP (east-southeast) | 39.6% |
| 24 | Moorefield CDP | 39.5% |
| 25 | Waterford CDP (southwest) | 39.5% |
| 26 | Brambleton CDP (south) | 39.3% |
| 27 | South Riding CDP (west-northwest) | 39.3% |
| 28 | South Riding CDP (west-southwest) | 39.3% |
| 29 | South Riding CDP (east-southeast) | 39.2% |
| 30 | Hamilton town (west-southwest) | 39% |
| 31 | Ashburn CDP (north-northwest) | 38.8% |
| 32 | Goose Creek Village CDP (northwest) | 38.8% |
| 33 | Lansdowne CDP (northwest) | 38.8% |
| 34 | Belmont CDP (southeast) | 38.7% |
| 35 | Cascades CDP (northeast) | 38.3% |
| 36 | Stone Ridge CDP (east-southeast 1) | 37.6% |
| 37 | Belmont CDP (south-southeast) | 37.5% |
| 38 | Sterling CDP (west) | 37.2% |
| 39 | Cascades CDP (southwest) | 36.8% |
| 40 | Arcola CDP (north-northwest) | 36.7% |
| 41 | Loudoun Valley Estates CDP (northwest) | 36.7% |
| 42 | Waterford CDP (south-southeast) | 36% |
| 43 | One Loudoun CDP (north-northeast) | 35.9% |
| 44 | Lovettsville town | 35.6% |
| 45 | Aldie CDP (west-northwest) | 35.5% |
| 46 | Hillsboro town (south) | 34.6% |
| 47 | Loudoun Valley Estates CDP (west-southwest) | 34.6% |
| 48 | Hillsboro town (north) | 34.5% |
| 49 | Loudoun Valley Estates CDP (south-southeast) | 34.5% |
| 50 | Ashburn CDP (east-southeast) | 34% |
| 51 | One Loudoun CDP (south-southwest) | 33.9% |
| 52 | Arcola CDP (south-southeast) | 33% |
| 53 | Waterford CDP (north-northwest) | 32.9% |
| 54 | Kincora CDP (west-northwest) | 32.8% |
| 55 | Purcellville town (east-northeast) | 32.8% |
| 56 | Kincora CDP (east-southeast) | 32% |
| 57 | South Riding CDP (northeast) | 32% |
| 58 | Hamilton town (east-northeast) | 31.3% |
| 59 | Aldie CDP (south-southeast) | 30.9% |
| 60 | Countryside CDP (west) | 30.7% |
| 61 | Belmont CDP (west-northwest) | 30.1% |
| 62 | Ashburn CDP (south-southeast) | 29.5% |
| 63 | Leesburg town (north) | 29.5% |
| 64 | Sugarland Run CDP (south) | 29.1% |
| 65 | South Riding CDP (east-northeast) | 27.4% |
| 66 | University Center CDP (southeast) | 27.3% |
| 67 | Sugarland Run CDP (north) | 26.9% |
| 68 | University Center CDP (northwest) | 26.4% |
| 69 | Dulles Town Center CDP (south-southeast) | 25.9% |
| 70 | Lowes Island CDP (southwest) | 24.4% |
| 71 | Leesburg town (north-northeast) | 23.3% |
| 72 | Oak Grove CDP (north-northeast) | 23.2% |
| 73 | Sterling CDP (west-southwest) | 21.4% |
| 74 | Sterling CDP (east) | 20.7% |