Arlington County, Virginia Demographics

Population trends, housing costs, income, commuting, and health, all on one page.

Arlington County, VA Population Density Map and Area Scores

Area Score

Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.

  • A+
    Health Top grade
    Among the top 3 healthiest counties in Virginia
  • A+
    Income Top grade
    Among the top 3 wealthiest counties in Virginia
  • A+
    Education Top grade
    Among the top 3 best educated counties in Virginia

Source: Map AI Methodology

Arlington County
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Population density, people per sq mi

Population: density and quick facts

Metric Arlington County Virginia Avg U.S. Average
Population 236,150 8,702,460 337,468,954
Population density (per sq mi) 9046.6 203.3 86.4
Population growth (%/yr) 0.51% 0.57% 0.59%
Median age 36.0 37.4 37.3
Households 111,999 3,364,625 130,235,071

Population in Arlington County grew by 14.1% from 2009 to 2024, reaching 236,150 in 2024.

Population Growth 2009–2024

Year Arlington County

Race & Ethnicity

Group Share

Age & Sex

The largest generation in Arlington County is Millennials, aged 29–44, at 29.6% of residents. That is 7.2 points above Virginia as a whole.

Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Virginia, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.

Male and female share

Women are 49.8% of the people living in Arlington County and men 50.2%.

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236,150

100% of everyone living in Arlington County

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Economy

Arlington County has a the economy index of A+, which means it is exceptionally prosperous.

Metric Arlington County Virginia Avg U.S. Average
Median household income $141,911 $93,527 $80,455
Income growth (%/yr) 3.18% 4.33% 4.80%
Unemployment rate 3.2% 4.1% 5.2%

The median household income in Arlington County is about 52% higher than in Virginia.

Detailed wealth and income breakdown →

Housing

Metric Arlington County Virginia Avg U.S. Average
Median home price $370,061 $256,082 $248,835
Median rent $2,321 $1,579 $1,407
Homeownership rate 41.3% 67.3% 65.2%

The median home price in Arlington County is about 13.3 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,321 per month for that long.

Full housing market analysis →

Commute Time & Mobility

Commuters in Arlington County spend about 51 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 212 hours, about 8.8 full days, spent commuting.

Metric Arlington County Virginia Avg U.S. Average
One-way commute (min) 25.4 23.2 22.4
Round-trip commute (min) 50.8 46.3 44.8
Yearly time spent (hours) 212 193 187
Estimated yearly cost $6,567 $5,986 $5,790
Work from home 35.3% 18.3% 15.0%
Highway traffic (vehicles/day) 21,183 10,059 8,813
Local road traffic (vehicles/day) 3,908 1,531 1,355

Fastest commutes among counties in Virginia: Lexington city (10.6 min), Covington city (12.2 min), Norton city (13.1 min).
Slowest: Amelia County (43.7 min), Craig County (41.3 min), Buckingham County (41.3 min).

The average commute time in Arlington County is 25 minutes, longer than the 23 minutes in Virginia.

Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.

Commute and transport details →

Education & Households

Arlington County has a education index of A+, which means it is exceptionally educated.

Metric Arlington County Virginia Avg U.S. Average
Bachelor's degree or higher 74.8% 37.7% 31.6%
Average household size 2.08 2.52 2.53

Highest education index among counties in Virginia: Falls Church city (0.6), Arlington County (0.6), Alexandria city (0.5).
Lowest: Greensville County (0.2), Lunenburg County (0.2), Buchanan County (0.2).

Health

Arlington County has a health index of A+, which means it is exceptionally healthy.

Metric Arlington County Virginia Avg U.S. Average
Life expectancy (years) 81.8 77.3 78.3
Self-rated poor health 8.0% 16.9% 16.3%
Smokers 9.5% 19.0% 19.0%

Highest health index among counties in Virginia: Falls Church city (0.8), Arlington County (0.8), Fairfax County (0.8).
Lowest: Emporia city (0.7), Petersburg city (0.8), Galax city (0.8).

Full health data →

Arlington County, VA Compared With Nearby Counties

How Arlington County, VA compares with the 2 counties closest to it.

Area Population Median household income Median home price Commute
Arlington County, VA 236,150 $141,911 #2/3 $370,061 #3/3 25.4 min #1/3
District of Columbia, DC 678,314 $110,571 $597,276 30.3 min
Fairfax County, VA 1,147,383 $153,857 $654,572 27.5 min

Frequently Asked Questions

Common questions about Arlington County, Virginia.

How big is Arlington County, Virginia by population?

About 236,150 people live in Arlington County, Virginia, in 111,999 households of 2.1 people on average. The median age is 36.0, close to the U.S. median of 37.3.

Is Arlington County, Virginia mostly urban or rural?

Averaged over its land area, Arlington County, Virginia has 9,047 people per square mile, a density typical of a city. That is about 105 times the U.S. average of 86.

Can a typical household afford a home in Arlington County, Virginia?

The median home costs 2.6 times the median household income ($370,061 against $141,911), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $2,321 a month takes about 20% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.

Is unemployment high in Arlington County, Virginia?

Unemployment in Arlington County, Virginia is only 3.2%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.

What share of adults in Arlington County, Virginia have a college degree?

74.8% of adults in Arlington County, Virginia hold a bachelor's degree or higher (about 7 in 10), well above the U.S. share of 31.6%.

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