How many people live in Gloucester County, NJ?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 311,800 people living in Gloucester County, NJ. That makes Gloucester County the 14th-most populous county in New Jersey. It is home to 3.3% of people living in the state.
312K
population of Gloucester County, NJ (2024)
3.3%
County share of the New Jersey population (2024)
About 311,800 people lived in Gloucester County, NJ in 2024.
Population estimates, 2000–2024
What are Gloucester County, NJ’s age demographics?
About 55,900 Gloucester County, NJ residents are aged 65 and older in 2024. That represents 17.9% of its population. For comparison, the age group represents 18% of New Jersey’s population and 18% in the US overall.
Another 65,200 Gloucester County residents, or 20.9% of the population, were children under 18. For comparison, the age group represents 21.5% of New Jersey’s population and 21.6% in the US overall.
A higher share of Gloucester County, NJ's population is aged 45–64 than the US as a whole.
Population estimates by age group, (2024)
What are Gloucester County, NJ’s racial and ethnic demographics?
Non-Hispanic white residents make up 73.6% of the Gloucester County, NJ population, higher than the national share of 57.5%.
In contrast, Gloucester County’s Hispanic population accounts for 9.2%, below the 20% nationwide, and the non-Hispanic Asian population makes up 3.5% 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.
Gloucester County, NJ has a higher share of a non-Hispanic white population than New Jersey as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Gloucester County, NJ is Washington with about 49,800 residents in 2024.
Cities and towns in Gloucester County, NJ ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Washington | 49,756 |
| 2. | Monroe | 38,043 |
| 3. | Deptford | 32,570 |
| 4. | Glassboro borough | 24,322 |
| 5. | West Deptford | 22,653 |
| 6. | Franklin | 16,691 |
| 7. | Mantua | 15,565 |
| 8. | Woolwich | 14,658 |
| 9. | Harrison | 13,924 |
| 10. | East Greenwich | 12,565 |
Keep exploring
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.
