Indiana County, Pennsylvania
County seat: Indiana · Population 82,878 (2025) · 827 sq mi
Indiana County is the 34th most populous of Pennsylvania's 67 counties, with 82,878 people (2025 estimate). Its county seat is Indiana. It is part of the District 10 region, one of the 11 PennDOT engineering districts. The map shows its 14 cities and towns and the 5 neighboring counties.
Indiana County facts
- County seat
- Indiana
- Population (2025 estimate)
- 82,878 −0.4% since 2020
- Land area
- 827 sq mi 20th largest of 67
- Water area
- 7 sq mi
- Population density
- 100 per sq mi
- Established
- 1803
- Named after
- indigenous peoples of the Americas peoples indigenous to the Western Hemisphere
- Largest city
- White 14,933
- Median household income
- $60,208
- Cities and towns
- 14 plus 12 CDPs
- ZIP codes
- 53
- Time zone
- Eastern
- FIPS code
- 42063
Cities and towns in Indiana County
Indiana County has 14 incorporated cities, towns and villages. Populations count the people living inside Indiana County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Indiana (county seat) | Borough | 14,697 | |
| Blairsville | Borough | 3,176 | |
| Homer City | Borough | 1,708 | |
| Clymer | Borough | 1,304 | |
| Saltsburg | Borough | 761 | |
| Ernest | Borough | 410 | |
| Marion Center | Borough | 404 | |
| Creekside | Borough | 280 | |
| Cherry Tree | Borough | 271 | |
| Glen Campbell | Borough | 250 | |
| Plumville | Borough | 247 | |
| Armagh | Borough | 99 | |
| Shelocta | Borough | 99 | |
| Smicksburg | Borough | 54 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Chevy Chase Heights | 1,101 | |
| Black Lick | 899 | |
| Dixonville | 756 | |
| Jacksonville | 680 | |
| Rossiter | 652 | |
| Lucerne Mines | 615 | |
| Robinson | 526 | |
| Heilwood | 239 | |
| Coral | 214 | |
| Alverda | 159 | |
| Commodore | 148 | |
| Graceton | 106 |
ZIP codes in Indiana County
53 ZIP codes reach into Indiana County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 15618 also Armstrong and Westmoreland counties
- 15681 also Westmoreland County
- 15701
- 15705
- 15710
- 15712
- 15713
- 15714 also Cambria County
- 15716
- 15717 also Westmoreland County
- 15720
- 15723
- 15724 also Clearfield and Cambria counties
- 15725
- 15727
- 15728
- 15729
- 15731
- 15732 also Armstrong County
- 15734
- 15739
- 15741
- 15742 also Clearfield County
- 15745
- 15746
- 15747
- 15748
- 15750
- 15752
- 15754
- 15756
- 15757 also Clearfield County
- 15759
- 15761
- 15763
- 15765
- 15767 also Jefferson and Clearfield counties
- 15771
- 15772 also Jefferson County
- 15774 also Armstrong County
- 15777
- 15783
- 15920
- 15929
- 15944 also Westmoreland County
- 15949
- 15954 also Westmoreland County
- 15957 also Cambria County
- 15961 also Cambria County
- 16211
- 16222 also Armstrong and Jefferson counties
- 16246
- 16256
Population of Indiana County, 2020–2025
Indiana County shrank by 358 people (−0.4%) between April 2020 and July 2025: 1,669 more deaths than births and a net gain of 1,297 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 83,158 |
| 2021 | 83,115 |
| 2022 | 82,893 |
| 2023 | 83,045 |
| 2024 | 83,257 |
| 2025 | 82,878 |
Neighboring counties
- Westmoreland County southwest · 349,324 people
- Armstrong County northwest · 63,698 people
- Cambria County southeast · 128,968 people
- Jefferson County north · 43,255 people
- Clearfield County northeast · 78,100 people
Printable Indiana County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (107 KB)
- PNG (2400 px) (94 KB)
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Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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