| 1 | Waterford borough | 7,310 |
| 2 | Unincorporated (east-southeast 2) | 7,303 |
| 3 | Unincorporated (southwest 3) | 7,263 |
| 4 | Unincorporated (east-northeast 1) | 6,990 |
| 5 | Erie city (east-southeast 2) | 6,617 |
| 6 | Erie city (east 3) | 6,558 |
| 7 | Unincorporated (south) | 6,164 |
| 8 | Corry city | 6,162 |
| 9 | Fairview CDP | 5,884 |
| 10 | Girard borough | 5,880 |
| 11 | Unincorporated (southwest 4) | 5,539 |
| 12 | Unincorporated (east-northeast 4) | 5,445 |
| 13 | Unincorporated (east-northeast 2) | 5,424 |
| 14 | Platea borough | 5,307 |
| 15 | Edinboro borough | 5,303 |
| 16 | Avonia CDP | 5,272 |
| 17 | Northwest Harborcreek CDP (south-southeast) | 5,109 |
| 18 | McKean borough | 4,887 |
| 19 | Unincorporated (east) | 4,470 |
| 20 | Unincorporated (west 2) | 4,410 |
| 21 | Erie city (south-southwest 3) | 4,269 |
| 22 | Unincorporated (northwest) | 4,137 |
| 23 | Unincorporated (east-southeast 1) | 4,102 |
| 24 | North East borough | 4,069 |
| 25 | Erie city (east-northeast 1) | 4,055 |
| 26 | Unincorporated (west-southwest) | 4,002 |
| 27 | Erie city (east 2) | 3,966 |
| 28 | Unincorporated (west-northwest) | 3,842 |
| 29 | Northwest Harborcreek CDP (north-northwest) | 3,799 |
| 30 | Lawrence Park CDP | 3,786 |
| 31 | Erie city (south-southwest 4) | 3,675 |
| 32 | Erie city (west-northwest 2) | 3,611 |
| 33 | Erie city (southwest 3) | 3,563 |
| 34 | Erie city (west 2) | 3,562 |
| 35 | Unincorporated (west 1) | 3,397 |
| 36 | Erie city (north-northeast 2) | 3,277 |
| 37 | Erie city (south) | 3,239 |
| 38 | Unincorporated (east-northeast 3) | 3,233 |
| 39 | Wesleyville borough | 3,189 |
| 40 | Erie city (southwest 1) | 3,183 |
| 41 | Erie city (north-northeast 1) | 3,178 |
| 42 | Erie city (southwest 2) | 3,108 |
| 43 | Unincorporated (southwest 1) | 3,061 |
| 44 | Erie city (west 3) | 3,036 |
| 45 | Unincorporated (northeast 3) | 3,003 |
| 46 | Union City borough (south-southwest) | 2,911 |
| 47 | Unincorporated (northeast 2) | 2,798 |
| 48 | Erie city (northeast 3) | 2,797 |
| 49 | Erie city (south-southeast) | 2,787 |
| 50 | Unincorporated (northeast 1) | 2,754 |
| 51 | Erie city (west-southwest) | 2,751 |
| 52 | Elgin borough | 2,724 |
| 53 | Wattsburg borough | 2,707 |
| 54 | Erie city (east-northeast 2) | 2,516 |
| 55 | Union City borough (north-northeast) | 2,514 |
| 56 | Cranesville borough | 2,379 |
| 57 | Erie city (east-southeast 1) | 2,373 |
| 58 | Erie city (south-southwest 2) | 2,330 |
| 59 | Erie city (north-northeast 3) | 2,326 |
| 60 | Erie city (northeast 2) | 2,279 |
| 61 | Erie city (west-northwest 1) | 2,241 |
| 62 | Erie city (west 1) | 2,218 |
| 63 | Unincorporated (south-southwest) | 2,180 |
| 64 | Penn State Erie (Behrend) CDP | 2,177 |
| 65 | Erie city (east 1) | 1,985 |
| 66 | Unincorporated (southwest 2) | 1,938 |
| 67 | Erie city (north) | 1,875 |
| 68 | Erie city (north-northwest) | 1,847 |
| 69 | Erie city (south-southwest 1) | 1,718 |
| 70 | Erie city (northeast 1) | 1,687 |
| 71 | Erie city (northwest) | 1,529 |
| 72 | Unincorporated (north) | 1,295 |
| 73 | Albion borough | 1,269 |