Arlington County, Virginia Demographics 2026
Arlington County, Virginia has a population of 236,254, the 8th most populous county in Virginia. The median household income is $142,114 and the median home value is $895,000. The poverty rate is 7.4%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Arlington County Quick Facts
How Arlington County Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 235,463 | 236,254 | +0.3% |
| Median household income | $140,160 | $142,114 | +1.4% |
| Median home value | $864,800 | $895,000 | +3.5% |
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 61 | National average: 61
Education
Educational Attainment (Adults 25+)
Cities & Places in Arlington County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Arlington | 236,254 | $142,114 | 7.4% | $895,000 |
Explore Virginia Rankings
Population Overview
Arlington County is located in Virginia with a total population of 236,254. It is the 8th most populous county out of 133 in Virginia. The county encompasses 1 Census-designated place.
Age Demographics
The median age in Arlington County is 35.5 years. This is 9% lower than the state median of 39.0 years.
Economy, Income & Housing
The median household income in Arlington County is $142,114. This is 53% higher than the state median of $93,170. It is also 76% higher than the national median of $80,734. The poverty rate stands at 7.4%. This is 25% lower than the state poverty rate of 9.9%. The unemployment rate is 3.3%. This is 23% lower than the state rate of 4.3%. The median home value is $895,000. Housing costs are 133% higher than the state median of $383,700. The home-value-to-income ratio of 6.3x suggests that housing affordability is a significant concern for many residents. 41.3% of occupied housing units are owner-occupied. This homeownership rate is 39% lower than the state average of 67.3%.
Race & Ethnicity
The largest racial or ethnic group in Arlington County is White (non-Hispanic), making up 58.0% of the population. Hispanic or Latino residents account for 15.9%. The Asian population is significantly higher than the state average (10.5% vs 6.9%).
Education
77.1% of residents aged 25 and older hold a bachelor's degree or higher. This places Arlington County in the top 10% of all counties in the state for educational attainment. This is 83% higher than the state rate of 42.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.2%. Notably, 41.7% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All figures for Arlington County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Virginia and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.
Frequently Asked Questions
What is the population of Arlington County, Virginia?
Arlington County has a population of 236,254, making it the 8th most populous county in Virginia.
What is the median income in Arlington County?
The median household income in Arlington County is $142,114 with a poverty rate of 7.4%.
How many cities are in Arlington County, Virginia?
Arlington County contains 1 Census-designated place.