15 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 16301 | Oil City | 15,067 |
| 16323 | Franklin | 14,694 |
| 16354 | Titusville | 10,120 |
| 16346 | Seneca | 3,246 |
| 16373 | Emlenton | 3,217 |
| 16342 | Polk | 2,185 |
| 16341 | Pleasantville | 1,790 |
| 16374 | Kennerdell | 1,643 |
| 16317 | Cooperstown | 1,335 |
| 16364 | Venus | 1,278 |
| 16319 | Cranberry | 1,050 |
| 16362 | Utica | 1,018 |
| 16343 | Reno | 616 |
| 16372 | Clintonville | 510 |
| 16344 | Rouseville | 470 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 15 ZCTAs in Venango County, Pennsylvania (US Census).