Arlington County, Virginia
Located in Virginia, Arlington County has a population of 236,254 residents and a median age of 35.5 years, making it the #298 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 7.4%. The median home value is $895,000, and the median household income is $142,114, which is 89% above the national median.
Demographics
Arlington County has a population of 236,254, making it the #298 most populous county in the US. The median age is 35.5 years, which is 8.7% below the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Arlington County is $142,114, ranking #12 out of 3,222 counties — 89.1% above the national median. The poverty rate is 7.4% and unemployment stands at 3.2%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Arlington County is $895,000 (+217.5% vs national). Renters pay a median of $2,322/mo and the homeownership rate is 41.3%.
Median Home Value Trend
Rankings →Household Type
Education
In Arlington County, 77.1% of adults age 25+ hold a bachelor's degree or higher, which is 128.7% above the national average, ranking #2 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Arlington County is 83.9 years. 12.6% of adults report poor or fair health and 4.8% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
9.6% of adults in Arlington County smoke , 25.9% are obese , and 24.6% report excessive drinking. The drug overdose death rate is 12.3 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Arlington County is 1.1 per 100,000 and the suicide rate is 6.3 per 100,000. Motor vehicle deaths occur at a rate of 2.7 per 100,000.
Homicide Rate Trend
Families & Children
8.0% of children in Arlington County live in poverty and the infant mortality rate is 2.8 per 1,000 live births. The teen birth rate is 6.3 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Arlington County is 77.2%. The mean commute time is 29.1 min, which is 5.6% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Arlington County voted Democratic with a margin of 58.7%. The vote was 78.3% Dem / 19.6% Rep. Compared to 2020, the margin shifted 4.8 toward Republicans .
Vote Share Over Time
About Arlington County, Virginia
Arlington County, Virginia has a total population of 236,254, making it the 298th most populous county in the United States. The median age in Arlington County is 35.5 years, which is 8.7% below the national median of 38.9 years.
The median household income in Arlington County is $142,114, which ranks #12 of 3,222 counties nationwide. This is 89.1% above the national median of $75,149. The poverty rate is 7.4%, lower than the national rate of 12.6%. The unemployment rate stands at 3.2%.
The median home value in Arlington County is $895,000, 217.5% above the national median. Renters in Arlington County pay a median gross rent of $2,322 per month. The homeownership rate is 41.3%, compared to the national rate of 64.4%.
In Arlington County, 77.1% of residents aged 25 and older hold a bachelor's degree or higher, 128.7% above the national average of 33.7%. Health insurance coverage stands at 94.7% of the population. The average commute time for workers is 29.1 min.
Arlington County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 58.0% of the population, followed by Hispanic or Latino (15.9%) and Asian (non-Hispanic) (10.5%).
All data for Arlington County, Virginia comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.