How many people live in Lehigh County, PA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 385,700 people living in Lehigh County, PA. That makes Lehigh County the 10th-most populous county in Pennsylvania. It is home to 3% of people living in the state.
386K
population of Lehigh County, PA (2024)
3%
County share of the Pennsylvania population (2024)
About 385,700 people lived in Lehigh County, PA in 2024.
Population estimates, 2000–2024
What are Lehigh County, PA’s age demographics?
About 70,700 Lehigh County residents are aged 65 and older in 2024. That represents 18.3% of its population. For comparison, the age group represents 20.4% of Pennsylvania’s population and 18% in the US overall.
Another 84,200 Lehigh County, PA residents, or 21.8% 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 lower share of Lehigh County, PA's population is aged 25–44 than the US as a whole.
Population estimates by age group, (2024)
What are Lehigh County, PA’s racial and ethnic demographics?
Non-Hispanic white residents make up 57.6% of the Lehigh County, PA population, higher than the national share of 57.5%. Lehigh County, PA also has a larger share of people identifying as Hispanic (30%) than the US overall (20%).
In contrast, Lehigh County’s non-Hispanic Black or African American population accounts for 6.3%, below the 12.6% nationwide, and the non-Hispanic Asian population makes up 4.2% of the county, compared with 6.5% 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.
Lehigh County, PA has a higher share of a Hispanic population than Pennsylvania as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Lehigh County, PA is Allentown with about 127,100 residents in 2024.
Cities and towns in Lehigh County, PA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Allentown | 127,138 |
| 2. | Lower Macungie | 33,246 |
| 3. | Whitehall | 29,656 |
| 4. | Upper Macungie | 29,284 |
| 5. | South Whitehall | 21,818 |
| 6. | Bethlehem (pt.) | 20,384 |
| 7. | Upper Saucon | 18,233 |
| 8. | North Whitehall | 16,057 |
| 9. | Salisbury | 13,820 |
| 10. | Emmaus borough | 12,314 |
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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.
