How many people live in Arlington County, VA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 239,800 people living in Arlington County, VA. That makes Arlington County the eighth-most populous county in Virginia. It is home to 2.7% of people living in the state.
240K
population of Arlington County, VA (2024)
2.7%
County share of the Virginia population (2024)
About 239,800 people lived in Arlington County, VA in 2024.
Population estimates, 2000–2024
What are Arlington County, VA’s age demographics?
About 30,000 Arlington County, VA residents are aged 65 and older in 2024. That represents 12.5% of its population. For comparison, the age group represents 17.8% of Virginia’s population and 18% in the US overall.
Another 42,400 Arlington County residents, or 17.7% of the population, were children under 18. For comparison, the age group represents 21.6% of Virginia’s population and 21.6% in the US overall.
A higher share of Arlington County, VA's population is aged 25–44 than the US as a whole.
Population estimates by age group, (2024)
What are Arlington County, VA’s racial and ethnic demographics?
Non-Hispanic white residents make up 58.3% of the Arlington County, VA population, higher than the national share of 57.5%. Arlington County also has a larger share of people identifying as non-Hispanic Asian (11.7%) than the US overall (6.5%).
In contrast, Arlington County’s Hispanic population accounts for 16.3%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 10% of the county, compared with 12.6% 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.
Arlington County, VA has a higher share of a Hispanic population than Virginia as a whole.
Population estimates by race and ethnicity, (2024)
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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.
