25 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 44483 | Warren | 25,805 |
| 44484 | Warren | 21,358 |
| 44446 | Niles | 20,060 |
| 44410 | Cortland | 15,992 |
| 44420 | Girard | 15,293 |
| 44485 | Warren | 14,930 |
| 44425 | Hubbard | 13,552 |
| 44481 | Warren | 10,206 |
| 44444 | Newton Falls | 9,220 |
| 44438 | Masury | 4,950 |
| 44430 | Leavittsburg | 4,827 |
| 44440 | Mineral Ridge | 4,418 |
| 44473 | Vienna | 4,213 |
| 44470 | Southington | 4,104 |
| 44437 | McDonald | 3,913 |
| 44403 | Brookfield | 3,743 |
| 44491 | West Farmington | 3,653 |
| 44428 | Kinsman | 3,102 |
| 44402 | Bristolville | 2,613 |
| 44450 | North Bloomfield | 2,246 |
| 44404 | Burghill | 1,663 |
| 44417 | Farmdale | 1,550 |
| 44418 | Fowler | 1,508 |
| 44439 | Mesopotamia | 499 |
| 44424 | Hartford | 83 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 25 ZCTAs in Trumbull County, Ohio (US Census).