| 1 | Edgewood CDP (west-southwest) | 8,231 |
| 2 | Bel Air South CDP (west-southwest) | 7,962 |
| 3 | Pleasant Hills CDP (north) | 7,827 |
| 4 | Pylesville CDP (north-northeast) | 7,822 |
| 5 | Edgewood CDP (east-southeast) | 7,722 |
| 6 | Bel Air town (north-northwest) | 7,646 |
| 7 | Jarrettsville CDP (south-southwest) | 7,484 |
| 8 | Havre de Grace city (west-northwest) | 7,376 |
| 9 | Joppatowne CDP (southwest) | 7,361 |
| 10 | Aberdeen Proving Ground CDP (southwest) | 6,586 |
| 11 | Darlington CDP (west-southwest) | 6,571 |
| 12 | Fallston CDP (south-southwest) | 6,525 |
| 13 | Abingdon CDP (east) | 6,156 |
| 14 | Bel Air town (east-northeast) | 6,106 |
| 15 | Pylesville CDP (south) | 5,869 |
| 16 | Jarrettsville CDP (east-southeast) | 5,851 |
| 17 | Aberdeen city (south) | 5,559 |
| 18 | Jarrettsville CDP (north) | 5,106 |
| 19 | Bel Air town (west-northwest) | 5,097 |
| 20 | Bel Air South CDP (west) | 4,904 |
| 21 | Joppatowne CDP (north) | 4,801 |
| 22 | Bel Air North CDP (west-northwest) | 4,762 |
| 23 | Perryman CDP | 4,712 |
| 24 | Pleasant Hills CDP (west) | 4,664 |
| 25 | Aberdeen Proving Ground CDP (north-northwest) | 4,535 |
| 26 | Bel Air South CDP (south-southeast) | 4,342 |
| 27 | Abingdon CDP (west-southwest) | 4,194 |
| 28 | Edgewood CDP (northeast) | 4,189 |
| 29 | Abingdon CDP (west-northwest) | 4,086 |
| 30 | Havre de Grace city (east-southeast) | 4,016 |
| 31 | Bel Air South CDP (north-northeast) | 3,940 |
| 32 | Pylesville CDP (west) | 3,878 |
| 33 | Bel Air South CDP (east-northeast) | 3,637 |
| 34 | Aberdeen city (east-northeast) | 3,635 |
| 35 | Bel Air North CDP (south-southwest) | 3,622 |
| 36 | Abingdon CDP (east-northeast) | 3,619 |
| 37 | Bel Air South CDP (south-southwest) | 3,592 |
| 38 | Bel Air town (south-southeast) | 3,496 |
| 39 | Bel Air town (east-southeast) | 3,426 |
| 40 | Fallston CDP (east) | 3,313 |
| 41 | Riverside CDP (southwest) | 3,183 |
| 42 | Aberdeen city (northwest) | 3,098 |
| 43 | Bel Air North CDP (north-northeast) | 3,053 |
| 44 | Bel Air town (west-southwest) | 2,883 |
| 45 | Aberdeen Proving Ground CDP (northeast 2) | 2,847 |
| 46 | Riverside CDP (north-northeast) | 2,789 |
| 47 | Joppatowne CDP (southeast) | 2,686 |
| 48 | Darlington CDP (south-southwest) | 2,662 |
| 49 | Pylesville CDP (east-northeast) | 2,613 |
| 50 | Aberdeen Proving Ground CDP (south) | 2,570 |
| 51 | Riverside CDP (east-southeast) | 2,523 |
| 52 | Bel Air town (south-southwest) | 2,518 |
| 53 | Aberdeen Proving Ground CDP (north-northeast) | 2,470 |
| 54 | Aberdeen Proving Ground CDP (northeast 1) | 2,365 |
| 55 | Darlington CDP (east) | 2,234 |
| 56 | Darlington CDP (north-northeast) | 2,110 |
| 57 | Fallston CDP (north-northwest) | 2,050 |
| 58 | Bel Air North CDP (east-southeast) | 1,858 |
| 59 | Pleasant Hills CDP (south-southeast) | 1,777 |