How many people live in Lancaster County, PA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 563,300 people living in Lancaster County, PA. That makes Lancaster County the sixth-most populous county in Pennsylvania. It is home to 4.3% of people living in the state.
563K
population of Lancaster County, PA (2024)
4.3%
County share of the Pennsylvania population (2024)
About 563,300 people lived in Lancaster County, PA in 2024.
Population estimates, 2000–2024
What are Lancaster County, PA’s age demographics?
About 115,600 Lancaster County, PA residents are aged 65 and older in 2024. That represents 20.5% of its population. For comparison, the age group represents 20.4% of Pennsylvania’s population and 18% in the US overall.
Another 128,200 Lancaster County residents, or 22.8% of the population, were children under 18. For comparison, the age group represents 20.1% of Pennsylvania’s population and 21.6% in the US overall.
A higher share of Lancaster County, PA's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Lancaster County, PA’s racial and ethnic demographics?
Non-Hispanic white residents make up 79.2% of the Lancaster County, PA population, higher than the national share of 57.5%.
In contrast, Lancaster County’s non-Hispanic Black or African American population accounts for 4%, below the 12.6% nationwide, and the Hispanic population makes up 12.1% of the county, compared with 20% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Lancaster County, PA has a higher share of a non-Hispanic white population than Pennsylvania as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Lancaster County, PA is Lancaster with about 58,400 residents in 2024.
Cities and towns in Lancaster County, PA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Lancaster | 58,441 |
| 2. | Manheim | 44,443 |
| 3. | East Hempfield | 27,247 |
| 4. | Manor | 22,062 |
| 5. | Warwick | 19,414 |
| 6. | East Lampeter | 18,830 |
| 7. | Lancaster | 18,685 |
| 8. | West Lampeter | 17,345 |
| 9. | West Hempfield | 17,207 |
| 10. | Ephrata borough | 13,719 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
