| Zip Code | City | Population ↓ |
|---|---|---|
| 15905 | Johnstown | 19,882 |
| 15904 | Johnstown | 16,388 |
| 15902 | Johnstown | 11,415 |
| 15906 | Johnstown | 9,965 |
| 15931 | Ebensburg | 9,018 |
| 15946 | Portage | 6,716 |
| 15714 | Northern Cambria | 4,919 |
| 15909 | Johnstown | 4,912 |
| 16630 | Cresson | 4,845 |
| 15940 | Loretto | 3,831 |
| 15943 | Nanty Glo | 3,657 |
| 15901 | Johnstown | 3,616 |
| 16668 | Patton | 3,564 |
| 15956 | South Fork | 2,604 |
| 15722 | Carrolltown | 2,391 |
| 16641 | Gallitzin | 2,388 |
| 15958 | Summerhill | 2,277 |
| 15938 | Lilly | 2,252 |
| 15955 | Sidman | 2,246 |
| 16646 | Hastings | 2,174 |
| 15942 | Mineral Point | 2,011 |
| 16613 | Ashville | 1,527 |
| 16639 | Fallentimber | 1,430 |
| 15952 | Salix | 1,235 |
| 16636 | Dysart | 1,081 |
| 15762 | Nicktown | 996 |
| 16640 | Flinton | 889 |
| 15927 | Colver | 760 |
| 15948 | Revloc | 663 |
| 15775 | Spangler | 599 |
| 15951 | Saint Michael | 492 |
| 15773 | Saint Benedict | 436 |
| 15930 | Dunlo | 419 |
| 15962 | Wilmore | 390 |
| 16619 | Blandburg | 315 |
| 15921 | Beaverdale | 314 |
| 16624 | Chest Springs | 204 |
| 15945 | Parkhill | 181 |
| 15738 | Emeigh | 178 |
| 15960 | Twin Rocks | 165 |
| 15925 | Cassandra | 120 |
| 15737 | Elmora | 114 |
| 16675 | Saint Boniface | 100 |
| 15760 | Marsteller | 83 |
| 15922 | Belsano | 82 |
| 15934 | Elton | 0 |
| 16699 | Cresson | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 47 ZCTAs in Cambria County, Pennsylvania (US Census).