| 1 | University Center CDP (northwest) | 13.3% |
| 2 | South Riding CDP (west-southwest) | 5.3% |
| 3 | University Center CDP (southeast) | 5.1% |
| 4 | Waterford CDP (south-southeast) | 4.3% |
| 5 | Countryside CDP (west) | 4.1% |
| 6 | Brambleton CDP (north) | 4% |
| 7 | Lowes Island CDP (north-northeast) | 4% |
| 8 | Waterford CDP (north-northwest) | 3.8% |
| 9 | Ashburn CDP (south-southeast) | 3.6% |
| 10 | Leesburg town (south-southwest) | 3.5% |
| 11 | Ashburn CDP (east-southeast) | 3.2% |
| 12 | Lovettsville town | 3.2% |
| 13 | Goose Creek Village CDP (east-southeast) | 3.1% |
| 14 | Lowes Island CDP (east-southeast) | 3% |
| 15 | Purcellville town (west-southwest) | 2.6% |
| 16 | Sterling CDP (east) | 2.6% |
| 17 | Ashburn CDP (north-northwest) | 2.4% |
| 18 | Belmont CDP (southeast) | 2.4% |
| 19 | Leesburg town (north) | 2.3% |
| 20 | Countryside CDP (east) | 2.2% |
| 21 | Brambleton CDP (south) | 2.1% |
| 22 | Broadlands CDP (south-southeast) | 2.1% |
| 23 | Cascades CDP (northeast) | 2.1% |
| 24 | One Loudoun CDP (north-northeast) | 2.1% |
| 25 | Aldie CDP (east) | 2% |
| 26 | Hillsboro town (north) | 2% |
| 27 | Aldie CDP (west-northwest) | 1.9% |
| 28 | Cascades CDP (southwest) | 1.9% |
| 29 | Countryside CDP (south-southeast) | 1.9% |
| 30 | One Loudoun CDP (south-southwest) | 1.9% |
| 31 | South Riding CDP (northeast) | 1.8% |
| 32 | South Riding CDP (west-northwest) | 1.8% |
| 33 | Lansdowne CDP (southeast) | 1.7% |
| 34 | Moorefield CDP | 1.6% |
| 35 | Round Hill town | 1.6% |
| 36 | Arcola CDP (south-southeast) | 1.5% |
| 37 | Broadlands CDP (north-northwest) | 1.5% |
| 38 | Goose Creek Village CDP (northwest) | 1.5% |
| 39 | Leesburg town (north-northeast) | 1.4% |
| 40 | South Riding CDP (east-northeast) | 1.4% |
| 41 | Goose Creek Village CDP (north-northwest) | 1.3% |
| 42 | Kincora CDP (east-southeast) | 1.3% |
| 43 | Sugarland Run CDP (north) | 1.3% |
| 44 | Loudoun Valley Estates CDP (north-northeast) | 1.2% |
| 45 | Loudoun Valley Estates CDP (northwest) | 1.2% |
| 46 | Lowes Island CDP (southwest) | 1.2% |
| 47 | Stone Ridge CDP (west-northwest) | 1.2% |
| 48 | Waterford CDP (southwest) | 1.2% |
| 49 | Loudoun Valley Estates CDP (south-southeast) | 1.1% |
| 50 | Sugarland Run CDP (south) | 1.1% |
| 51 | Sterling CDP (west) | 1% |
| 52 | Dulles Town Center CDP (north-northwest) | 0.7% |
| 53 | Loudoun Valley Estates CDP (west-southwest) | 0.7% |
| 54 | Purcellville town (east-northeast) | 0.7% |
| 55 | Belmont CDP (north-northeast) | 0.6% |
| 56 | Belmont CDP (west-northwest) | 0.6% |
| 57 | Kincora CDP (west-northwest) | 0.6% |
| 58 | Dulles Town Center CDP (south-southeast) | 0.5% |
| 59 | Goose Creek Village CDP (southwest) | 0.5% |
| 60 | Lansdowne CDP (northwest) | 0.5% |
| 61 | South Riding CDP (east-southeast) | 0.5% |
| 62 | Hamilton town (west-southwest) | 0.4% |
| 63 | Sterling CDP (west-southwest) | 0.4% |
| 64 | Goose Creek Village CDP (east) | 0.3% |
| 65 | Hamilton town (east-northeast) | 0.3% |
| 66 | Oak Grove CDP (south-southwest) | 0.3% |
| 67 | Waterford CDP (southeast) | 0.3% |
| 68 | Aldie CDP (south-southeast) | 0.2% |
| 69 | Arcola CDP (north-northwest) | 0.1% |
| 70 | Hillsboro town (south) | 0.1% |
| 71 | Belmont CDP (south-southeast) | 0% |
| 72 | Oak Grove CDP (north-northeast) | 0% |
| 73 | Stone Ridge CDP (east-southeast 1) | 0% |
| 74 | Stone Ridge CDP (east-southeast 2) | 0% |