Cumberland County, Pennsylvania
County seat: Carlisle · Population 277,270 (2025) · 546 sq mi
Cumberland County is the 15th most populous of Pennsylvania's 67 counties, with 277,270 people (2025 estimate). Its county seat is Carlisle. It is part of the District 8 region, one of the 11 PennDOT engineering districts. The map shows its 11 cities and towns and the 5 neighboring counties.
Cumberland County facts
- County seat
- Carlisle
- Population (2025 estimate)
- 277,270 +6.9% since 2020
- Land area
- 546 sq mi 41st largest of 67
- Water area
- 5 sq mi
- Population density
- 508 per sq mi
- Established
- 1750
- Same name
- One of 8 Cumberland Counties in the US
- Named after
- Cumberland historic county of England
- Largest city
- Hampden 35,401
- Median household income
- $87,494
- Cities and towns
- 11 plus 10 CDPs
- ZIP codes
- 21
- Time zone
- Eastern
- FIPS code
- 42041
Cities and towns in Cumberland County
Cumberland County has 11 incorporated cities, towns and villages. Populations count the people living inside Cumberland County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Carlisle (county seat) | Borough | 22,693 | |
| Mechanicsburg | Borough | 10,037 | |
| Camp Hill | Borough | 8,199 | |
| New Cumberland | Borough | 7,590 | |
| Lemoyne | Borough | 4,801 | |
| Shippensburg | Borough | 4,434 | Franklin County |
| Wormleysburg | Borough | 3,078 | |
| Mount Holly Springs | Borough | 2,019 | |
| Shiremanstown | Borough | 1,657 | |
| Newville | Borough | 1,409 | |
| Newburg | Borough | 359 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Lower Allen | 7,646 | |
| Enola | 6,534 | |
| Schlusser | 5,402 | |
| Boiling Springs | 3,334 | |
| Messiah College | 2,329 | |
| Shippensburg University | 2,071 | |
| West Fairview | 1,208 | |
| New Kingstown | 748 | |
| Carlisle Barracks | 730 | |
| Plainfield | 248 |
ZIP codes in Cumberland County
21 ZIP codes reach into Cumberland County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 17007
- 17011 also York County
- 17013
- 17015
- 17019 also York and Adams counties
- 17025
- 17027
- 17043
- 17050
- 17053 also Perry County
- 17055 also York County
- 17065
- 17070 also York County
- 17081
- 17093
- 17240 also Franklin County
- 17241
- 17257 also Franklin County
- 17266
- 17307 also Adams County
- 17324 also Adams County
Population of Cumberland County, 2020–2025
Cumberland County grew by 17,809 people (+6.9%) between April 2020 and July 2025: 223 more deaths than births and a net gain of 18,289 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 260,251 |
| 2021 | 265,577 |
| 2022 | 268,588 |
| 2023 | 271,177 |
| 2024 | 274,656 |
| 2025 | 277,270 |
Neighboring counties
- Perry County north · 46,806 people
- York County southeast · 473,197 people
- Franklin County southwest · 160,652 people
- Adams County south · 107,594 people
- Dauphin County northeast · 293,351 people
Printable Cumberland 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) (122 KB)
- PNG (2400 px) (95 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.
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