Sullivan County, Pennsylvania
County seat: Laporte · Population 5,856 (2025) · 450 sq mi
Sullivan County is the 66th most populous of Pennsylvania's 67 counties, with 5,856 people (2025 estimate). Its county seat is Laporte. It is part of the District 3 region, one of the 11 PennDOT engineering districts. The map shows its 4 cities and towns and the 5 neighboring counties.
Sullivan County facts
- County seat
- Laporte
- Population (2025 estimate)
- 5,856 +0.4% since 2020
- Land area
- 450 sq mi 50th largest of 67
- Water area
- 3 sq mi
- Population density
- 13 per sq mi
- Established
- 1847
- Same name
- One of 6 Sullivan Counties in the US
- Named after
- John Sullivan American general, politician and judge from New Hampshire (1740-1795)
- Largest city
- Cherry 1,494
- Median household income
- $69,764
- Cities and towns
- 4 plus 2 CDPs
- ZIP codes
- 13
- Time zone
- Eastern
- FIPS code
- 42113
Cities and towns in Sullivan County
Sullivan County has 4 incorporated cities, towns and villages. Populations count the people living inside Sullivan County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Dushore | Borough | 452 | |
| Laporte (county seat) | Borough | 312 | |
| Eagles Mere | Borough | 153 | |
| Forksville | Borough | 108 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Mildred | 340 | |
| Elk Grove | 24 | Columbia County |
ZIP codes in Sullivan County
13 ZIP codes reach into Sullivan County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 17701 also Lycoming County
- 17731
- 17737 also Lycoming County
- 17758 also Lycoming County
- 17768
- 17814 also Columbia, Luzerne and Lycoming counties
- 18614 also Wyoming and Bradford counties
- 18616 also Bradford County
- 18619 also Lycoming County
- 18626
- 18628
- 18632
- 18833 also Bradford County
Population of Sullivan County, 2020–2025
Sullivan County grew by 21 people (+0.4%) between April 2020 and July 2025: 321 more deaths than births and a net gain of 346 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 5,823 |
| 2021 | 5,864 |
| 2022 | 5,888 |
| 2023 | 5,913 |
| 2024 | 5,895 |
| 2025 | 5,856 |
Neighboring counties
- Lycoming County west · 112,587 people
- Bradford County north · 59,600 people
- Wyoming County east · 25,790 people
- Columbia County south · 66,193 people
- Luzerne County southeast · 332,126 people
Printable Sullivan 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) (71 KB)
- PNG (2400 px) (62 KB)
Paste this code to embed the map on your site:
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.
Back to the Pennsylvania county map with all 67 counties. Found an error? Tell us.