Sully Square, Virginia Demographics & Population 2026

Population Overview

Sully Square is a small community located in Virginia, within Fairfax County. The total population is 2,394. It ranks as the 266th most populous out of 681 Census-designated places in Virginia.

Age Demographics

The median age in Sully Square is 32.6 years. This is 16% lower than the state median of 39.0 years. With 33.4% of the population under 18, Sully Square has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Sully Square is $175,781. This is 89% higher than the state median of $93,170. It is also 118% higher than the national median of $80,734. The poverty rate stands at 0.8%. This is 92% lower than the state poverty rate of 9.9%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The survey records no unemployed residents in Sully Square, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $677,000. Housing costs are 76% higher than the state median of $383,700. The home-value-to-income ratio is 3.9x. 50.7% of occupied housing units are owner-occupied. This homeownership rate is 25% lower than the state average of 67.3%.

Race & Ethnicity

The largest racial or ethnic group in Sully Square is Asian, making up 60.8% of the population. White (non-Hispanic) residents account for 25.7%. The White (non-Hispanic) population (25.7%) is well below the state average of 58.4%. The Black or African American population (2.6%) is well below the state average of 18.3%. The Asian population is significantly higher than the state average (60.8% vs 6.9%).

Education

80.7% of residents aged 25 and older hold a bachelor's degree or higher. This places Sully Square in the top 10% of all cities in the state for educational attainment. This is 91% 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 99.4%. Notably, 48.5% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Sully Square, Virginia is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Virginia state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 681 Census-designated places in Virginia. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.