| Zip Code | City | Population ↓ |
|---|---|---|
| 17745 | Lock Haven | 17,494 |
| 17751 | Mill Hall | 7,180 |
| 17747 | Loganton | 3,412 |
| 17764 | Renovo | 2,405 |
| 16822 | Beech Creek | 1,935 |
| 17721 | Avis | 1,572 |
| 17760 | North Bend | 548 |
| 16848 | Lamar | 289 |
| 17748 | McElhattan | 153 |
| 17750 | Mackeyville | 137 |
| 17779 | Woolrich | 132 |
| 17778 | Westport | 130 |
| 16871 | Pottersdale | 52 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 13 ZCTAs in Clinton County, Pennsylvania (US Census).