Founded in 1803, Indiana County is one of 67 counties in the state of Pennsylvania. Historically, Indiana County was formed from parts of Lycoming and Westmoreland Counties; it was attached to Westmoreland County until 1806. The city of Indiana is the county seat. With FIPS code of 63, Indiana County has a population of 82,886 and area of 834 square miles (2,160 km2).
List of all cities in Indiana County, PA alphabetically
| City/Town | Postal Code | Area Code |
| Alverda, PA | 15710 | 814 |
| Arcadia, PA | 15712 | 814 |
| Armagh, PA | 15920 | 814 |
| Aultman, PA | 15713 | 724/878 |
| Beyer, PA | 16211 | 724/878 |
| Black Lick, PA | 15716 | 724/878 |
| Blairsville, PA | 15717 | 724/878 |
| Brush Valley, PA | 15720 | 724/878 |
| Chambersville, PA | 15723 | 724/878 |
| Cherry Tree, PA | 15724 | 814 |
| Clarksburg, PA | 15725 | 724/878 |
| Clune, PA | 15727 | 724/878 |
| Clymer, PA | 15728 | 724/878 |
| Commodore, PA | 15729 | 724/878 |
| Coral, PA | 15731 | 724/878 |
| Creekside, PA | 15732 | 724/878 |
| Dilltown, PA | 15929 | 814 |
| Dixonville, PA | 15734 | 724/878 |
| Ernest, PA | 15739 | 724/878 |
| Gipsy, PA | 15741 | 814 |
| Glen Campbell, PA | 15742 | 814 |
| Graceton, PA | 15748 | 724/878 |
| Heilwood, PA | 15745 | 814 |
| Hillsdale, PA | 15746 | 814 |
| Home, PA | 15747 | 724/878 |
| Homer City, PA | 15713 | 724/878 |
| 15748 | 724/878 | |
| Indiana, PA | 15701 | 724/878 |
| 15705 | 724/878 | |
| Indiana University of Pa, PA | 15705 | 724/878 |
| Josephine, PA | 15750 | 724/878 |
| Kent, PA | 15752 | 724/878 |
| Lucernemines, PA | 15754 | 724/878 |
| Marchand, PA | 15758 | 724/878 |
| Marion Center, PA | 15759 | 724/878 |
| McIntyre, PA | 15756 | 724/878 |
| Mentcle, PA | 15761 | 814 |
| Northpoint, PA | 15763 | 814 |
| Penn Run, PA | 15765 | 724/878 |
| Plumville, PA | 16246 | 724/878 |
| Robinson, PA | 15949 | 724/878 |
| Rochester Mills, PA | 15771 | 724/878 |
| Rossiter, PA | 15772 | 814 |
| Saltsburg, PA | 15681 | 724/878 |
| Shelocta, PA | 15774 | 724/878 |
| Smicksburg, PA | 16256 | 814 |
| Starford, PA | 15777 | 724/878 |
| Strongstown, PA | 15957 | 814 |
| Waterman, PA | 15748 | 724/878 |
| West Lebanon, PA | 15783 | 724/878 |