| Zip Code | City | Population ↓ |
|---|---|---|
| 16652 | Huntingdon | 15,734 |
| 17066 | Mount Union | 4,970 |
| 16611 | Alexandria | 2,656 |
| 17264 | Three Springs | 2,187 |
| 16669 | Petersburg | 2,185 |
| 16654 | Huntingdon | 1,975 |
| 17052 | Mapleton Depot | 1,490 |
| 17243 | Orbisonia | 1,398 |
| 16657 | James Creek | 1,388 |
| 17255 | Shade Gap | 1,107 |
| 17060 | Mill Creek | 1,098 |
| 17260 | Shirleysburg | 1,080 |
| 16647 | Hesston | 806 |
| 16621 | Broad Top | 665 |
| 17213 | Blairs Mills | 619 |
| 16674 | Robertsdale | 581 |
| 17002 | Allensville | 500 |
| 16623 | Cassville | 498 |
| 17253 | Saltillo | 460 |
| 17249 | Rockhill Furnace | 351 |
| 16683 | Spruce Creek | 350 |
| 16694 | Wood | 348 |
| 16685 | Todd | 317 |
| 16634 | Dudley | 251 |
| 17239 | Neelyton | 207 |
| 17215 | Burnt Cabins | 158 |
| 16638 | Entriken | 87 |
| 16622 | Calvin | 85 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 28 ZCTAs in Huntingdon County, Pennsylvania (US Census).