| Zip Code | City | Population ↓ |
|---|---|---|
| 15767 | Punxsutawney | 14,156 |
| 15825 | Brookville | 9,565 |
| 15851 | Reynoldsville | 7,112 |
| 15824 | Brockway | 5,146 |
| 15864 | Summerville | 1,882 |
| 15840 | Falls Creek | 1,744 |
| 16240 | Mayport | 1,604 |
| 15860 | Sigel | 1,212 |
| 15829 | Corsica | 1,209 |
| 15865 | Sykesville | 988 |
| 15715 | Big Run | 536 |
| 15778 | Timblin | 342 |
| 15711 | Anita | 293 |
| 15770 | Ringgold | 180 |
| 15764 | Oliveburg | 156 |
| 15863 | Stump Creek | 143 |
| 15733 | De Lancey | 119 |
| 15730 | Coolspring | 116 |
| 15847 | Knox Dale | 94 |
| 15781 | Walston | 76 |
| 15780 | Valier | 62 |
| 15784 | Worthville | 59 |
| 15744 | Hamilton | 53 |
| 15776 | Sprankle Mills | 34 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 24 ZCTAs in Jefferson County, Pennsylvania (US Census).