There are 20 zip codes in Lycoming County, Pennsylvania. The most populated is 17701, located in Williamsport. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | Population | City |
|---|---|---|
| 17701 | 43,309 | Williamsport |
| 17756 | 12,415 | Muncy |
| 17754 | 12,236 | Montoursville |
| 17740 | 11,925 | Jersey Shore |
| 17702 | 10,653 | Williamsport |
| 17737 | 6,566 | Hughesville |
| 17810 | 5,763 | Allenwood |
| 17752 | 4,929 | Montgomery |
| 17728 | 4,618 | Cogan Station |
| 17771 | 2,978 | Trout Run |
| 17744 | 2,860 | Linden |
| 17774 | 1,051 | Unityville |
| 17762 | 455 | Picture Rocks |
| 17763 | 260 | Ralston |
| 17720 | 245 | Antes Fort |
| 17776 | 185 | Waterville |
| 17723 | 65 | Cammal |
| 17742 | 56 | Lairdsville |
| 17769 | 42 | Slate Run |
| 17739 | 25 | Jersey Mills |