How many people live in Northampton County, PA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 323,000 people living in Northampton County, PA. That makes Northampton County the 13th-most populous county in Pennsylvania. It is home to 2.5% of people living in the state.
323K
population of Northampton County, PA (2024)
2.5%
County share of the Pennsylvania population (2024)
About 323,000 people lived in Northampton County, PA in 2024.
Population estimates, 2000–2024
What are Northampton County, PA’s age demographics?
About 68,500 Northampton County, PA residents are aged 65 and older in 2024. That represents 21.2% of its population. For comparison, the age group represents 20.4% of Pennsylvania’s population and 18% in the US overall.
Another 60,000 Northampton County, PA residents, or 18.6% 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 Northampton County, PA's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Northampton County, PA’s racial and ethnic demographics?
Non-Hispanic white residents make up 71.7% of the Northampton County, PA population, higher than the national share of 57.5%.
In contrast, Northampton County’s non-Hispanic Black or African American population accounts for 6.3%, below the 12.6% nationwide, and the Hispanic population makes up 16.6% 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.
Northampton 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 Northampton County, PA is Bethlehem with about 59,100 residents in 2024.
Cities and towns in Northampton County, PA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Bethlehem (pt.) | 59,069 |
| 2. | Easton | 30,432 |
| 3. | Bethlehem | 26,723 |
| 4. | Palmer | 22,606 |
| 5. | Forks | 16,663 |
| 6. | Hanover | 11,690 |
| 7. | Lower Saucon | 11,089 |
| 8. | Lehigh | 10,815 |
| 9. | Northampton borough | 10,587 |
| 10. | Moore | 9,435 |
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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.