46 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 15701 | Indiana | 31,269 |
| 15717 | Blairsville | 9,206 |
| 15748 | Homer City | 7,343 |
| 15681 | Saltsburg | 4,698 |
| 15728 | Clymer | 3,510 |
| 15705 | Indiana | 3,101 |
| 15759 | Marion Center | 2,550 |
| 15954 | Seward | 2,279 |
| 16256 | Smicksburg | 2,162 |
| 15724 | Cherry Tree | 2,049 |
| 15747 | Home | 1,641 |
| 15732 | Creekside | 1,606 |
| 15772 | Rossiter | 1,556 |
| 15765 | Penn Run | 1,469 |
| 15725 | Clarksburg | 979 |
| 15729 | Commodore | 970 |
| 15742 | Glen Campbell | 929 |
| 15771 | Rochester Mills | 903 |
| 15961 | Vintondale | 875 |
| 15949 | Robinson | 716 |
| 15920 | Armagh | 695 |
| 15720 | Brush Valley | 382 |
| 15716 | Black Lick | 369 |
| 15739 | Ernest | 366 |
| 15750 | Josephine | 347 |
| 15754 | Lucernemines | 266 |
| 15957 | Strongstown | 262 |
| 15745 | Heilwood | 239 |
| 16211 | Beyer | 218 |
| 15731 | Coral | 200 |
| 15756 | McIntyre | 196 |
| 15727 | Clune | 195 |
| 15710 | Alverda | 188 |
| 15734 | Dixonville | 176 |
| 16246 | Plumville | 152 |
| 15761 | Mentcle | 144 |
| 15752 | Kent | 143 |
| 15713 | Aultman | 131 |
| 15783 | West Lebanon | 113 |
| 15929 | Dilltown | 112 |
| 15746 | Hillsdale | 105 |
| 15741 | Gipsy | 45 |
| 15712 | Arcadia | 42 |
| 15777 | Starford | 28 |
| 15723 | Chambersville | 26 |
| 15763 | Northpoint | 15 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 46 ZCTAs in Indiana County, Pennsylvania (US Census).