| 1 | Unincorporated (east 4) | 7,676 |
| 2 | Canfield city (north-northeast) | 6,364 |
| 3 | Unincorporated (west-southwest 1) | 6,339 |
| 4 | New Middletown village | 5,957 |
| 5 | Unincorporated (west-northwest 1) | 5,627 |
| 6 | Austintown CDP (west) | 5,507 |
| 7 | Austintown CDP (southeast) | 5,504 |
| 8 | Struthers city (southwest) | 5,323 |
| 9 | Unincorporated (south-southeast) | 5,192 |
| 10 | Austintown CDP (south-southeast) | 5,170 |
| 11 | Austintown CDP (northwest) | 4,947 |
| 12 | Austintown CDP (east) | 4,802 |
| 13 | Austintown CDP (east-northeast) | 4,460 |
| 14 | North Lima CDP (south-southwest) | 4,184 |
| 15 | Sebring village | 4,183 |
| 16 | Unincorporated (east-northeast 2) | 4,132 |
| 17 | Campbell city (east-northeast) | 4,129 |
| 18 | Canfield city (south-southwest) | 4,120 |
| 19 | Maple Ridge CDP | 4,052 |
| 20 | Unincorporated (east 1) | 4,012 |
| 21 | Unincorporated (west-southwest 2) | 3,858 |
| 22 | Poland village (east-northeast) | 3,844 |
| 23 | Unincorporated (south) | 3,841 |
| 24 | Unincorporated (south-southwest) | 3,608 |
| 25 | Lake Milton CDP | 3,557 |
| 26 | North Lima CDP (north-northeast) | 3,500 |
| 27 | Washingtonville village | 3,409 |
| 28 | Youngstown city (southwest 1) | 3,337 |
| 29 | Unincorporated (southeast) | 3,326 |
| 30 | Damascus CDP | 3,089 |
| 31 | Youngstown city (southwest 2) | 3,028 |
| 32 | Unincorporated (east-northeast 1) | 3,017 |
| 33 | Youngstown city (north-northwest 2) | 2,984 |
| 34 | Unincorporated (north-northeast) | 2,979 |
| 35 | Youngstown city (east-northeast) | 2,957 |
| 36 | Austintown CDP (north-northeast) | 2,930 |
| 37 | Youngstown city (south 2) | 2,558 |
| 38 | Austintown CDP (southwest) | 2,501 |
| 39 | Youngstown city (east-southeast 1) | 2,469 |
| 40 | Youngstown city (south-southwest 2) | 2,459 |
| 41 | Unincorporated (east 2) | 2,432 |
| 42 | New Springfield CDP | 2,419 |
| 43 | Struthers city (northwest) | 2,419 |
| 44 | Youngstown city (west 1) | 2,415 |
| 45 | Youngstown city (east) | 2,403 |
| 46 | Youngstown city (west-northwest 2) | 2,393 |
| 47 | Youngstown city (south-southeast 1) | 2,373 |
| 48 | Poland village (west-southwest) | 2,346 |
| 49 | Youngstown city (west 2) | 2,274 |
| 50 | Struthers city (east) | 2,253 |
| 51 | Unincorporated (west-northwest 2) | 2,118 |
| 52 | Youngstown city (north 1) | 2,079 |
| 53 | Youngstown city (north-northeast 1) | 2,051 |
| 54 | Youngstown city (north-northeast 3) | 2,051 |
| 55 | Youngstown city (southeast 1) | 2,018 |
| 56 | Campbell city (west) | 2,015 |
| 57 | Youngstown city (south 1) | 2,003 |
| 58 | Youngstown city (northeast 2) | 1,888 |
| 59 | Unincorporated (northeast) | 1,833 |
| 60 | Unincorporated (east 3) | 1,769 |
| 61 | Youngstown city (west 3) | 1,687 |
| 62 | Campbell city (south) | 1,668 |
| 63 | Youngstown city (west-northwest 1) | 1,651 |
| 64 | Youngstown city (east-southeast 2) | 1,620 |
| 65 | Youngstown city (north-northwest 1) | 1,501 |
| 66 | Youngstown city (west 4) | 1,399 |
| 67 | Youngstown city (southwest 3) | 1,354 |
| 68 | Youngstown city (northeast 1) | 1,327 |
| 69 | Youngstown city (southeast 2) | 1,158 |
| 70 | Lowellville village | 1,047 |
| 71 | Youngstown city (south-southwest 1) | 928 |
| 72 | Youngstown city (north 2) | 843 |
| 73 | Youngstown city (north-northeast 2) | 839 |
| 74 | Youngstown city (south-southeast 2) | 816 |
| 75 | Youngstown city (south 3) | 742 |