Population 46,830 · Census ACS 2020–24
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Population and households in Herndon
Household size in Herndon
| Period | Herndon | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.90 | 2.73 | 2.63 | 2.68 |
| 2010–14 | 3.23 | 2.82 | 2.68 | 2.73 |
| 2015–19 | 3.30 | 2.86 | 2.68 | 2.71 |
| 2020–24 | 3.18 | 2.77 | 2.62 | 2.65 |
| Change | +0.28 | +0.04 | −0.01 | −0.03 |
Households in Herndon are large by national standards, averaging 3.18 people against 2.65 for the U.S. That usually means more families with children at home. Since 2006–10, household size has climbed from 2.90, even as the national average fell.
Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).
Median age in Herndon
| Period | Herndon | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 37.1 | 37.0 | 38.2 | 37.7 |
| 2010–14 | 36.8 | 37.6 | 39.0 | 38.6 |
| 2015–19 | 37.3 | 38.5 | 40.0 | 39.6 |
| 2020–24 | 36.6 | 39.2 | 40.3 | 40.1 |
| Change | −0.5 | +2.2 | +2.1 | +2.3 |
Herndon is younger than the country as a whole: its median age is 36.6, against 40.1 nationally. The median age has edged down from 37.1 in 2006–10, even as the national median rose. Residents skew youngest in the west and oldest in the southeast.
Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).
Single-parent households in Herndon
| Period | Herndon | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.9% | 11.3% | 11.1% | 12.3% |
| 2010–14 | 8.8% | 11.3% | 11.0% | 12.3% |
| 2015–19 | 9.7% | 10.4% | 10.5% | 11.6% |
| 2020–24 | 9.5% | 10.4% | 10.7% | 11.6% |
| Change | +2.6 pts | −0.9 pts | −0.4 pts | −0.6 pts |
Single parents head about one in ten households in Herndon (9.5%), below the national share of 11.6%. That is in line with the rest of the Washington area. The single-parent share has risen 2.6 points since 2006–10, even as the national share fell.
Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).
Housing in Herndon
Renters in Herndon
| Period | Herndon | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 25.9% | 34.0% | 31.1% | 33.3% |
| 2010–14 | 31.7% | 36.6% | 33.3% | 35.6% |
| 2015–19 | 32.6% | 36.8% | 33.7% | 36.0% |
| 2020–24 | 33.4% | 36.3% | 32.7% | 34.8% |
| Change | +7.5 pts | +2.3 pts | +1.5 pts | +1.5 pts |
About a third of households in Herndon rent their homes (33.4%), close to the national share of 34.8%. More than one in five owners (22.7%) have paid off their mortgages, well below the national share of 39.8%. Rentals cluster in the west; owners are most common in the southeast. The renter share has risen 7.5 points since 2006–10, a much bigger shift than nationally.
Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).
Vacant homes in Herndon
| Period | Herndon | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 10.6% | 8.7% | 10.3% | 11.4% |
| 2010–14 | 7.4% | 7.3% | 10.2% | 11.4% |
| 2015–19 | 3.9% | 6.6% | 9.7% | 11.1% |
| 2020–24 | 5.3% | 5.9% | 8.7% | 9.6% |
| Change | −5.3 pts | −2.8 pts | −1.6 pts | −1.8 pts |
Empty homes are scarce in Herndon: just 5.3% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. That is in line with the rest of the Washington area. Since 2006–10, vacancy has fallen 5.3 points, in line with the national trend.
Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).
Age of homes in Herndon
| Period | Herndon | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 1985 | 1977 | 1978 | 1974 |
| 2010–14 | 1985 | 1978 | 1980 | 1975 |
| 2015–19 | 1986 | 1979 | 1981 | 1977 |
| 2020–24 | 1988 | 1982 | 1984 | 1980 |
| Change | +3 | +6 | +5 | +6 |
Much of the housing in Herndon is relatively new: half of its homes were built after 1988, compared with 1980 for the U.S. as a whole. The median year built has moved up from 1985 in 2006–10, a sign of steady new building. Newer construction is concentrated in the southwest, while the north has the oldest housing.
Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).
Rent in Herndon
| Period | Herndon | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,640 | $1,470 | $1,143 | $965 |
| 2010–14 | $1,738 | $1,583 | $1,238 | $1,040 |
| 2015–19 | $2,136 | $1,907 | $1,436 | $1,213 |
| 2020–24 | $2,526 | $2,236 | $1,743 | $1,571 |
| Change | +$886 | +$766 | +$600 | +$606 |
A typical rental in Herndon costs $2,526 a month with utilities, well above the national median of $1,571. Rents are up $886 a month from 2006–10, a 54% rise, a slower climb than the nation's. The typical renter here spends 27.7% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Rents run highest in the south and lowest in the north.
Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).
Education in Herndon
Bachelor's degrees in Herndon
| Period | Herndon | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 55.0% | 46.6% | 35.2% | 28.4% |
| 2010–14 | 59.0% | 48.2% | 36.7% | 29.6% |
| 2015–19 | 58.0% | 51.0% | 39.3% | 32.1% |
| 2020–24 | 60.1% | 53.9% | 42.5% | 35.6% |
| Change | +5.1 pts | +7.3 pts | +7.3 pts | +7.2 pts |
Herndon is highly educated: about six in ten adults 25 and older (60.1%) hold at least a bachelor's degree, far above the national share of 35.6%. The share with a degree is up 5.1 points from 2006–10, as it has nationally. College graduates are most concentrated in the southeast and least in the north.
Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
High school graduates in Herndon
| Period | Herndon | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 87.5% | 89.4% | 86.8% | 84.9% |
| 2010–14 | 89.0% | 90.2% | 88.3% | 86.1% |
| 2015–19 | 87.5% | 90.8% | 89.9% | 87.7% |
| 2020–24 | 87.7% | 91.2% | 91.6% | 89.3% |
| Change | +0.2 pts | +1.7 pts | +4.7 pts | +4.3 pts |
About one in eight adults in Herndon never finished high school, a bit more than nationally: 87.7% have a diploma or equivalent, against 89.3% across the U.S. Herndon has a lower share of high school graduates than the great majority of Virginia cities.
High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).
Jobs in Herndon
| Period | Herndon | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.0% | 5.9% | 6.0% | 8.1% |
| 2010–14 | 4.4% | 6.9% | 7.0% | 9.4% |
| 2015–19 | 3.6% | 4.7% | 4.7% | 5.6% |
| 2020–24 | 3.6% | 4.8% | 4.3% | 5.4% |
| Change | +0.5 pts | −1.1 pts | −1.7 pts | −2.7 pts |
Jobs have been easier to find in Herndon than nationally: unemployment was 3.6%, against 5.4%. Since 2006–10, unemployment has edged up 0.5 points, even as the national rate fell. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.
Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).
Herndon compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Herndon | 3.18 | 36.6 | 9.5% | 33.4% | 5.3% | 1988 | $2,526 | 60.1% | 87.7% | 3.6% |
| McNair | 2.47 | 32.4 | 7.4% | 74.6% | 4.3% | 2004 | $2,368 | 68.1% | 96.2% | 2.4% |
| Reston | 2.31 | 40.5 | 7.4% | 39.3% | 6.2% | 1987 | $2,294 | 72.1% | 95.9% | 4.5% |
| Franklin Farm | 3.02 | 44.2 | 3.6% | 6.3% | 3.9% | 1985 | $2,793 | 79.9% | 97.3% | 3.1% |
| Dranesville | 3.19 | 39.9 | 8.4% | 12.8% | 3.2% | 1985 | $2,960 | 68.4% | 95.7% | 3.8% |
| Sterling | 2.90 | 35.8 | 9.9% | 25.1% | 4.9% | 1997 | $2,328 | 56.4% | 88.0% | 4.3% |
| Dulles Town Center | 2.54 | 35.0 | 16.4% | 70.0% | 5.3% | 2003 | $2,460 | 60.1% | 96.3% | 5.5% |
| Chantilly | 3.18 | 40.8 | 7.7% | 17.8% | 1.5% | 1992 | $2,579 | 60.7% | 90.0% | 2.8% |
| Great Falls | 3.08 | 45.9 | 3.6% | 5.0% | 3.4% | 1984 | $3,412 | 85.4% | 98.9% | 3.3% |
| Cascades | 2.75 | 40.2 | 5.0% | 26.7% | 4.9% | 1995 | $2,608 | 69.0% | 98.5% | 3.6% |
| Wolf Trap | 2.97 | 45.7 | 5.2% | 4.9% | 4.6% | 1980 | $3,113 | 84.6% | 98.3% | 2.1% |
All figures 2020–24.
Cities with similar populations: Zanesville, OH · Taylors, SC · Concord, NH · Chillicothe, OH · West Orange, NJ · Winter Springs, FL · Woodland Hills, CA · Brighton, MI · Bountiful, UT · Bessemer, AL
About these numbers
Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Herndon. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.
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