| 1 | Bridgeport city (northwest 3) | 9,045 |
| 2 | Long Hill CDP (north-northwest) | 8,234 |
| 3 | Mill Plain CDP | 7,987 |
| 4 | Bridgeport city (west-southwest 1) | 7,005 |
| 5 | Trumbull Center CDP (southwest) | 6,891 |
| 6 | Bridgeport city (south-southwest 1) | 6,732 |
| 7 | East Village CDP (north) | 6,730 |
| 8 | East Village CDP (south) | 6,637 |
| 9 | Bridgeport city (northwest 2) | 6,336 |
| 10 | Unincorporated (northeast 3) | 6,146 |
| 11 | Bridgeport city (northwest 1) | 5,627 |
| 12 | Daniels Farm CDP | 5,626 |
| 13 | Bridgeport city (south-southwest 5) | 5,589 |
| 14 | Stepney CDP | 5,466 |
| 15 | Oronoque CDP | 5,402 |
| 16 | Unincorporated (south-southwest 2) | 5,207 |
| 17 | Trumbull Center CDP (east-southeast) | 5,111 |
| 18 | Stratford Downtown CDP (north-northeast) | 5,104 |
| 19 | Murray CDP (southwest) | 5,098 |
| 20 | Stratford Downtown CDP (west) | 5,084 |
| 21 | Bridgeport city (north-northeast 1) | 4,877 |
| 22 | Unincorporated (south-southwest 1) | 4,823 |
| 23 | Unincorporated (northeast 2) | 4,745 |
| 24 | Bridgeport city (north 2) | 4,739 |
| 25 | Bridgeport city (north-northwest 3) | 4,693 |
| 26 | Unincorporated (northeast 1) | 4,681 |
| 27 | Bridgeport city (west-northwest 1) | 4,678 |
| 28 | Unincorporated (northeast 4) | 4,664 |
| 29 | Long Hill CDP (south-southeast) | 4,554 |
| 30 | Plattsville CDP (southeast) | 4,479 |
| 31 | Unincorporated (east) | 4,451 |
| 32 | Bridgeport city (west-northwest 2) | 4,439 |
| 33 | Bridgeport city (north 1) | 4,419 |
| 34 | Bridgeport city (south-southwest 2) | 4,419 |
| 35 | Bridgeport city (east-northeast 2) | 4,410 |
| 36 | Bridgeport city (southwest) | 4,409 |
| 37 | Bridgeport city (southeast) | 4,326 |
| 38 | Bridgeport city (south-southwest 4) | 4,278 |
| 39 | Murray CDP (northeast) | 4,251 |
| 40 | Bridgeport city (north-northwest 2) | 4,206 |
| 41 | Unincorporated (west) | 4,189 |
| 42 | Plattsville CDP (west-northwest) | 4,057 |
| 43 | Bridgeport city (northeast 2) | 3,999 |
| 44 | Plattsville CDP (east) | 3,995 |
| 45 | Bridgeport city (east 2) | 3,987 |
| 46 | Unincorporated (west-northwest) | 3,850 |
| 47 | Lordship CDP | 3,795 |
| 48 | Bridgeport city (west-southwest 2) | 3,691 |
| 49 | Unincorporated (northwest) | 3,555 |
| 50 | Unincorporated (east-northeast 1) | 3,546 |
| 51 | Trumbull Center CDP (north) | 3,504 |
| 52 | Bridgeport city (north-northwest 1) | 3,496 |
| 53 | Bridgeport city (east 1) | 3,280 |
| 54 | Bridgeport city (east-northeast 1) | 3,222 |
| 55 | Unincorporated (southwest 3) | 3,196 |
| 56 | Bridgeport city (northeast 3) | 3,183 |
| 57 | Unincorporated (southwest 1) | 3,156 |
| 58 | Bridgeport city (northeast 4) | 3,098 |
| 59 | Tashua CDP | 3,008 |
| 60 | Unincorporated (west-southwest 3) | 2,973 |
| 61 | Unincorporated (east-northeast 2) | 2,833 |
| 62 | Bridgeport city (south-southeast 2) | 2,697 |
| 63 | Unincorporated (west-southwest 1) | 2,680 |
| 64 | Bridgeport city (south-southwest 3) | 2,669 |
| 65 | Bridgeport city (south 4) | 2,635 |
| 66 | Bridgeport city (south 3) | 2,394 |
| 67 | Bridgeport city (south 5) | 2,309 |
| 68 | Unincorporated (west-southwest 2) | 2,270 |
| 69 | Unincorporated (southwest 2) | 2,265 |
| 70 | Bridgeport city (northeast 1) | 2,139 |
| 71 | Southport CDP | 2,089 |
| 72 | Bridgeport city (east-southeast) | 2,044 |
| 73 | Stratford Downtown CDP (south-southeast) | 1,952 |
| 74 | Bridgeport city (south-southeast 1) | 1,945 |
| 75 | Bridgeport city (south 2) | 1,926 |
| 76 | Bridgeport city (east-northeast 3) | 1,907 |
| 77 | Bridgeport city (north-northeast 2) | 1,887 |
| 78 | Bridgeport city (south 1) | 1,277 |