Loudoun County, Virginia Demographics

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

Loudoun 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 Above average
    Among the top 5 healthiest counties in Virginia
  • A+
    Income Top grade
    Among the top 3 wealthiest counties in Virginia
  • A+
    Education Top grade

Source: Map AI Methodology

Loudoun County
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Population density, people per sq mi

Population: density and quick facts

Metric Loudoun County Virginia Avg U.S. Average
Population 432,991 8,702,460 337,468,954
Population density (per sq mi) 830.1 203.3 86.4
Population growth (%/yr) 2.25% 0.57% 0.59%
Median age 36.1 37.4 37.3
Households 143,029 3,364,625 130,235,071

Population in Loudoun County grew by 56.0% from 2009 to 2024, reaching 432,991 in 2024.

Population Growth 2009–2024

Year Loudoun County

Race & Ethnicity

Group Share

Age & Sex

The largest generation in Loudoun County is Millennials, aged 29–44, at 25.8% of residents. That is 3.4 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 50.4% of the people living in Loudoun County and men 49.6%.

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Economy

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

Metric Loudoun County Virginia Avg U.S. Average
Median household income $182,384 $93,527 $80,455
Income growth (%/yr) 4.76% 4.33% 4.80%
Unemployment rate 3.3% 4.1% 5.2%

The median household income in Loudoun County is about 95% higher than in Virginia.

Detailed wealth and income breakdown →

Housing

Metric Loudoun County Virginia Avg U.S. Average
Median home price $815,538 $256,082 $248,835
Median rent $2,385 $1,579 $1,407
Homeownership rate 77.9% 67.3% 65.2%

The median home price in Loudoun County is about 28.5 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $2,385 per month for that long.

Full housing market analysis →

Commute Time & Mobility

Commuters in Loudoun County spend about 52 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 218 hours, about 9.1 full days, spent commuting.

Metric Loudoun County Virginia Avg U.S. Average
One-way commute (min) 26.2 23.2 22.4
Round-trip commute (min) 52.4 46.3 44.8
Yearly time spent (hours) 218 193 187
Estimated yearly cost $6,765 $5,986 $5,790
Work from home 31.2% 18.3% 15.0%
Highway traffic (vehicles/day) 12,254 10,059 8,813
Local road traffic (vehicles/day) 2,078 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 Loudoun County is 26 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

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

Metric Loudoun County Virginia Avg U.S. Average
Bachelor's degree or higher 58.8% 37.7% 31.6%
Average household size 3.04 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

Loudoun County has a health index of A, which means it is very healthy.

Metric Loudoun County Virginia Avg U.S. Average
Life expectancy (years) 81.9 77.3 78.3
Self-rated poor health 9.1% 16.9% 16.3%
Smokers 11.1% 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 →

Loudoun County, VA Compared With Nearby Counties

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

Area Population Median household income Median home price Commute
Loudoun County, VA 432,991 $182,384 #1/3 $815,538 #2/3 26.2 min #1/3
Jefferson County, WV 59,260 $98,855 $354,347 32.1 min
Fauquier County, VA 74,560 $130,834 $859,283 32.5 min

Frequently Asked Questions

Common questions about Loudoun County, Virginia.

What is the population of Loudoun County, Virginia?

About 432,991 people live in Loudoun County, Virginia, in 143,029 households of 3.0 people on average. The median age is 36.1, close to the U.S. median of 37.3.

How densely populated is Loudoun County, Virginia?

Averaged over its land area, Loudoun County, Virginia has 830 people per square mile, a density typical of a mix of suburbs, small towns and farmland. That is about 9.6 times the U.S. average of 86.

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

The median home costs 4.5 times the median household income ($815,538 against $182,384), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $2,385 a month takes about 16% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.

How strong is the job market in Loudoun County, Virginia?

Unemployment in Loudoun County, Virginia is only 3.3%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.

How common is a college degree in Loudoun County, Virginia?

58.8% of adults in Loudoun County, Virginia hold a bachelor's degree or higher (about 6 in 10), well above the U.S. share of 31.6%.

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