Census-designated place · Virginia
South Riding, Virginia
South Riding, census-designated place, in Loudoun County, Virginia. South Riding had 34,352 people in the ACS 2020-2024 5-year estimates (±1,973). GEOID 5174100.
Residents, 2020-2024
34,352
±1,973 (90% margin)
2020 Census count: 33,877
Median household income
$196,403
±$8,378 (90% margin)
Virginia: $93,170
Median home value
$746,200
±$26,102 (90% margin)
Virginia: $383,700
Median gross rent
$2,905
±$194 (90% margin)
Virginia: $1,579
Where is South Riding and what county is it in?
South Riding is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Loudoun County, Virginia. It covers 6.8 square miles of land, 4,949 residents per square mile in 2020.
South Riding is in the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan statistical area, which takes in 23 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in South Riding, and is it growing?
The 2020-2024 American Community Survey puts South Riding's population at 34,352 (±1,973). The 2020 Census counted 33,877 residents.
The Census Bureau publishes yearly population estimates for incorporated places only; South Riding is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | South Riding | Loudoun County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 34,352 ±1,973 | 432,998 | +2,837 |
| Households | 10,371 ±519 | 143,032 | +564 |
| Average household size | 3.31 ±0.10 | 3.02 | no clear change |
| Housing units | 10,510 ±514 | 147,003 | +617 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in South Riding?
The median resident of South Riding is 38.5 years old; 27.5% are under 18 and 6.8% are 65 or older. The largest group is non-Hispanic Asian residents at 39.1%, then non-Hispanic white residents at 36.4%. 35.3% of residents were born outside the United States.
| Measure | South Riding | Loudoun County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 38.5 ±0.7 | 38.2 | +2.5 |
| Under 18 years | 27.5% ±1.6 pts | 26.6% | – |
| 65 years and over | 6.8% ±0.7 pts | 10.8% | – |
| Male | 51.6% ±1.6 pts | 50.1% | – |
| Hispanic or Latino (any race) | 9.8% ±2.2 pts | 14.3% | no clear change |
| White alone, not Hispanic | 36.4% ±3.1 pts | 51.0% | −8.3 pts |
| Black or African American alone, not Hispanic | 7.8% ±2.8 pts | 7.5% | no clear change |
| Asian alone, not Hispanic | 39.1% ±2.9 pts | 21.7% | +4.4 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.3% ±0.3 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.1% ±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 5.7% ±1.3 pts | 4.6% | – |
| Some other race alone, not Hispanic | 1.0% ±0.6 pts | 0.8% | – |
| Born outside the United States | 35.3% ±2.4 pts | 27.4% | +3.3 pts |
| Speak a language other than English at home (age 5+) | 43.7% ±3.2 pts | 34.9% | – |
| Civilian veterans (age 18+) | 7.3% ±1.6 pts | 7.0% | – |
| With a disability | 6.0% ±1.0 pts | 7.1% | – |
| No health insurance coverage | 4.1% ±1.5 pts | 5.4% | no clear change |
| High school graduate or higher (age 25+) | 93.7% ±1.5 pts | 93.9% | – |
| Bachelor's degree or higher (age 25+) | 68.5% ±3.4 pts | 64.6% | no clear change |
| Graduate or professional degree (age 25+) | 33.7% ±2.8 pts | 28.6% | – |
| Lived in the same house a year earlier | 90.2% ±2.3 pts | 89.2% | – |
| Moved from another state in the past year | 2.1% ±1.1 pts | 2.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in South Riding earn?
Half of South Riding's 10,371 households earn less than $196,403 a year (±$8,378), against $181,765 in Loudoun County and $93,170 in Virginia. In 2015-2019 it was $195,675 in 2024 dollars; the margins of error cannot tell the two periods apart. 3.8% of residents live below the poverty line.
| Measure | South Riding | Loudoun County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $196,403 ±$8,378 | $181,765 | no clear change |
| Mean household income | $223,492 ±$11,699 | $214,791 | – |
| Per capita income | $70,318 ±$4,376 | $71,986 | no clear change |
| People below the poverty line | 3.8% ±1.5 pts | 4.2% | no clear change |
| Children under 18 below the poverty line | 4.2% ±2.3 pts | 4.4% | no clear change |
| Households receiving SNAP | 1.2% ±0.7 pts | 3.2% | – |
| Households with a computer | 99.8% ±0.3 pts | 99.1% | – |
| Households with a broadband subscription | 99.5% ±0.5 pts | 97.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in South Riding?
Owners occupy 83.4% of South Riding's occupied homes and renters 16.6%. The median owner-occupied home is valued at $746,200 by its owner (±$26,102). The median renter pays $2,905 a month including utilities, and 29.6% of renters pay 35% or more of their income on rent.
| Measure | South Riding | Loudoun County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $746,200 ±$26,102 | $743,800 | +$95,901 |
| Median gross rent | $2,905 ±$194 | $2,386 | no clear change |
| Renters paying 35% or more of income on rent | 29.6% ±9.9 pts | 37.3% | no clear change |
| Median monthly owner costs, with a mortgage | $3,213 ±$122 | $3,270 | – |
| Owner-occupied homes | 83.4% ±3.3 pts | 77.9% | no clear change |
| Renter-occupied homes | 16.6% ±3.3 pts | 22.1% | – |
| Housing units | 10,510 ±514 | 147,003 | +617 |
| Homeowner vacancy rate | 0.2% ±0.3 pts | 0.2% | – |
| Rental vacancy rate | 0.0% ±2.3 pts | 3.9% | – |
| Single-family detached homes | 48.6% ±3.3 pts | 51.4% | – |
| Mobile homes | 0.7% ±1.0 pts | 0.5% | – |
| Built 2020 or later | 1.8% ±1.1 pts | 2.8% | – |
| Built 2010 to 2019 | 27.2% ±2.7 pts | 23.8% | – |
| Built 1939 or earlier | 0.2% ±0.2 pts | 2.3% | – |
| Households with no vehicle | 1.8% ±1.0 pts | 2.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in South Riding work and get to work?
58.5% of South Riding's workers drive alone and 30.4% work from home. The average trip to work takes 33.0 minutes. The unemployment rate in 2020-2024 averaged 3.8%.
| Measure | South Riding | Loudoun County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 79.5% ±2.1 pts | 74.0% | – |
| Unemployment rate | 3.8% ±1.3 pts | 3.3% | no clear change |
| Drove alone to work | 58.5% ±3.7 pts | 57.5% | – |
| Carpooled | 8.1% ±1.8 pts | 7.4% | – |
| Public transportation | 1.0% ±0.6 pts | 1.4% | – |
| Walked | 1.0% ±0.5 pts | 1.2% | – |
| Worked from home | 30.4% ±3.2 pts | 31.2% | +21.5 pts |
| Mean travel time to work | 33.0 min ±1.9 | 30.1 min | −6.1 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in South Riding?
5 census tracts lie mostly in South Riding (2020 census blocks). Their median household incomes run from $167,165 (Tract 6118.08) to $220,972 (Tract 6118.05).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 6118.07Loudoun County | 8,108 | $213,956 |
| Tract 6118.04Loudoun County | 8,353 | $196,742 |
| Tract 6118.03Loudoun County | 7,335 | $173,429 |
| Tract 6118.08Loudoun County | 5,769 | $167,165 |
| Tract 6118.05Loudoun County | 4,787 | $220,972 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in South Riding) · Census block assignment files
How does South Riding compare with other places in Virginia?
South Riding ranks 32nd of 365 places in Virginia with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 33rd | 374 |
| Residents per square mile | 36th | 374 |
| Median household income | 32nd | 365 |
| Per capita income | 56th | 374 |
| Median home value | 40th | 359 |
| Median gross rent | 19th | 341 |
| Poverty rate | 234th | 263 |
| Bachelor's degree or higher | 50th | 359 |
| Median age | 204th | 372 |
| Owner-occupied share | 89th | 368 |
| Work from home | 53rd | 286 |
| Travel time to work | 58th | 372 |
South Riding's figures with every place in Virginia (CSV)
Every place in Virginia, sortable · Compare South Riding with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for South Riding?
6 of the 57 figures for South Riding on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for South Riding are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.