Snyder County, Pennsylvania
County seat: Middleburg · Population 39,655 (2025) · 329 sq mi
Snyder County is the 52nd most populous of Pennsylvania's 67 counties, with 39,655 people (2025 estimate). Its county seat is Middleburg. It is part of the District 3 region, one of the 11 PennDOT engineering districts. The map shows its 6 cities and towns and the 4 neighboring counties.
Snyder County facts
- County seat
- Middleburg
- Population (2025 estimate)
- 39,655 −0.2% since 2020
- Land area
- 329 sq mi 63rd largest of 67
- Water area
- 3 sq mi
- Population density
- 121 per sq mi
- Established
- 1855
- Named after
- Simon Snyder Governor of Pennsylvania (1759-1819)
- Largest city
- Selinsgrove 5,488
- Median household income
- $66,876
- Cities and towns
- 6 plus 10 CDPs
- ZIP codes
- 15
- Time zone
- Eastern
- FIPS code
- 42109
Cities and towns in Snyder County
Snyder County has 6 incorporated cities, towns and villages. Populations count the people living inside Snyder County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Selinsgrove | Borough | 5,488 | |
| Shamokin Dam | Borough | 1,623 | |
| Middleburg (county seat) | Borough | 1,302 | |
| Beavertown | Borough | 984 | |
| McClure | Borough | 880 | |
| Freeburg | Borough | 552 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Hummels Wharf | 876 | |
| Penns Creek | 823 | |
| Beaver Springs | 704 | |
| Port Trevorton | 687 | |
| Mount Pleasant Mills | 503 | |
| Kreamer | 491 | |
| Troxelville | 396 | |
| Kratzerville | 319 | |
| Paxtonville | 218 | |
| Richfield | 54 | Juniata County |
ZIP codes in Snyder County
15 ZIP codes reach into Snyder County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 17045 also Perry and Juniata counties
- 17063 also Mifflin County
- 17086 also Juniata County
- 17812
- 17813
- 17827
- 17841 also Mifflin County
- 17842
- 17853 also Juniata County
- 17861
- 17862
- 17864
- 17870 also Union County
- 17876
- 17889 also Union County
Population of Snyder County, 2020–2025
Snyder County shrank by 81 people (−0.2%) between April 2020 and July 2025: 6 more deaths than births and a net loss of 91 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 39,737 |
| 2021 | 39,730 |
| 2022 | 39,506 |
| 2023 | 39,673 |
| 2024 | 39,689 |
| 2025 | 39,655 |
Neighboring counties
- Union County north · 42,313 people
- Juniata County southwest · 23,403 people
- Northumberland County east · 89,920 people
- Mifflin County west · 46,127 people
Printable Snyder 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) (86 KB)
- PNG (2400 px) (75 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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