Arlington County, Virginia Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 8th-largest in Virginia
The population of Arlington County, Virginia is 235,463 as of the 2023 American Community Survey, making it the 8th-largest county in Virginia. The median household income is $140,160, the median home value is $864,800, and the median age is 35.5.
The population of Arlington County has grown 14.6% since 2010 (209,319 → 239,807), a +0.98% annualized rate.
235,463
Population
+0.98%
Annual growth
9057
People / sq mi
$140,160
Median Income
$864,800
Median Home Value
Arlington County covers 26 sq mi of land at 9057.3 people per square mile.
About Arlington County, VA
Educational attainment is the headline number in Arlington County: 77.1% of adults 25 and older have a four-year degree. Arlington County is a county in Virginia with a population of 235,463. That makes it one of the ten largest counties in Virginia in the country, at #8 by population.
Earnings sit at the high end: a median household income of $140,160, above the US median of $78,538. Only 5.0% of residents live in poverty, below the national 12.4%. Real estate commands a premium here — a median home value of $864,800, with typical rent around $2,275.
Degree attainment is near the top of the range for US counties: 77.1% of adults 25+ hold a bachelor’s, above the 35.0% national rate. Working from home is common here: 31.5% of workers do so, above the national 14.0%, and the average commute runs about 27 minutes each way.
The education numbers are the throughline: a college-heavy population in Arlington County usually coincides with higher incomes and a workforce concentrated in professional and information industries.
Arlington County Population History (2010-2024)
The county of Arlington County had a population of 209,319 in 2010 and 239,807 in 2024, a 14.6% growth over 14 years. The peak was 239,807 in 2024. Average annual growth rate: 0.98%.
239,807
Population (2024)
209,319
Population (2010)
239,807
Peak (2024)
0.98%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 209,319 |
| 2011 | 216,078 |
| 2012 | 221,614 |
| 2013 | 225,120 |
| 2014 | 226,274 |
| 2015 | 228,887 |
| 2016 | 231,805 |
| 2017 | 235,193 |
| 2018 | 236,662 |
| 2019 | 238,392 |
| 2020 | 238,829 |
| 2021 | 233,478 |
| 2022 | 233,976 |
| 2023 | 235,181 |
| 2024 | 239,807 |
Race & Ethnicity
| White | 62.6% |
| Black or African American | 9.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.4% |
| Two or More Races | 0.0% |
Age & Sex
35.5
Median Age
49.7%
Female
50.3%
Male
11.6%
Age 65+
Age Distribution
Children (under 15): 15.3% · Seniors (65+): 11.6%
Income & Poverty
| Median household income | $140,160+$49,186 vs state |
| Mean household income | $184,356 |
| Per-capita income | $88,024 |
| Poverty rate | 5.0%-1.8% vs state |
| Unemployment rate | 2.5% |
| Employment-to-population | 73.8% |
Top Industries by Employment
The largest employment sector in Arlington County is finance & real estate, accounting for 30.4% of workers.
How residents commute
15.9%
Drive alone
4.3%
Carpool
39.7%
Public transit
31.5%
Work from home
26.6 min
Avg commute
Housing
$864,800+$504,100 vs state
Median home value
$2,275
Median rent
41.8%
Homeownership rate
120,746
Total housing units
92.4%
Occupied
7.6%
Vacant
58.2%
Renter-occupied
Social & access
94.7%
With health insurance
97.6%
With broadband internet
52.7%
Foreign-born
6.3%
Veterans (18+)
6.7%
With a disability
71.4%
Speak language other than English at home
Education
95.4%
High School+
77.1%
Bachelor's+
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Other counties in Virginia
Part of Virginia
Metro areas in Virginia
County rankings
Frequently Asked Questions
Arlington County, Virginia has a population of 235,463 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 8th-largest county in Virginia. Population density is 9057 people per square mile.
The population of Arlington County has grown 14.6% since 2010 (209,319 → 239,807), a +0.98% annualized rate.
The median household income in Arlington County, Virginia is $140,160, with mean (average) household income of $184,356 and per-capita income of $88,024. 5.0% of residents live below the federal poverty level.
In Arlington County, the largest racial and ethnic groups are White (62.6%), Black or African American (9.4%), Hispanic or Latino (1.4%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Arlington County, Virginia is 35.5 years. Residents are 49.7% female and 50.3% male.
The median home value in Arlington County is $864,800 and median monthly rent is $2,275. 41.8% of occupied housing units are owner-occupied. The county has 120,746 total housing units, 7.6% of which are vacant.
The largest employment sector in Arlington County, Virginia is finance, insurance, and real estate, employing 30.4% of workers. The unemployment rate is 2.5%.
Virginia Beach is among the largest cities associated with Arlington County, Virginia, with a population of 457,066.
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Statewide data for Virginia
Population, race, income, age, and trends across Virginia
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.