Population 24,198 · Census ACS 2020–24
Choose a measure to map it.Tap a measure to map it. Swipe the row for more. Arrows show the change since 2006–10.
Median age by neighborhoodHistory and comparison ↓︎
Younger residents
Older residents
Colorblind friendly
off
More maps of Chantilly: Best Neighborhoods · Walk Grade · Household income · Home prices · Race · Politics · Traffic noise · Internet
Population and households in Chantilly
Household size in Chantilly
| Period | Chantilly | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.21 | 2.73 | 2.63 | 2.68 |
| 2010–14 | 3.29 | 2.82 | 2.68 | 2.73 |
| 2015–19 | 3.38 | 2.86 | 2.68 | 2.71 |
| 2020–24 | 3.18 | 2.77 | 2.62 | 2.65 |
| Change | −0.03 | +0.04 | −0.01 | −0.03 |
Chantilly is a place of big households: 3.18 people per home on average, compared with 2.65 nationally. Numbers like that usually point to plenty of families with kids. Since 2006–10, household size has edged down from 3.21, in line with the national trend.
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 Chantilly
| Period | Chantilly | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 36.2 | 37.0 | 38.2 | 37.7 |
| 2010–14 | 36.4 | 37.6 | 39.0 | 38.6 |
| 2015–19 | 39.5 | 38.5 | 40.0 | 39.6 |
| 2020–24 | 40.8 | 39.2 | 40.3 | 40.1 |
| Change | +4.6 | +2.2 | +2.1 | +2.3 |
At 40.8, the median age in Chantilly is close to the national median of 40.1, so its age mix looks much like the country's. The population here is older than in the Washington area overall, where the median age is 39.2. Since 2006–10, the median age has climbed from 36.2, mirroring the country.
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 Chantilly
| Period | Chantilly | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.9% | 11.3% | 11.1% | 12.3% |
| 2010–14 | 13.7% | 11.3% | 11.0% | 12.3% |
| 2015–19 | 8.0% | 10.4% | 10.5% | 11.6% |
| 2020–24 | 7.7% | 10.4% | 10.7% | 11.6% |
| Change | +0.7 pts | −0.9 pts | −0.4 pts | −0.6 pts |
Single-parent households are relatively rare in Chantilly: 7.7% of households, against 11.6% nationally. Since 2006–10, the single-parent share has edged up 0.7 points, 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 Chantilly
Renters in Chantilly
| Period | Chantilly | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 14.9% | 34.0% | 31.1% | 33.3% |
| 2010–14 | 17.8% | 36.6% | 33.3% | 35.6% |
| 2015–19 | 17.8% | 36.8% | 33.7% | 36.0% |
| 2020–24 | 17.8% | 36.3% | 32.7% | 34.8% |
| Change | +2.9 pts | +2.3 pts | +1.5 pts | +1.5 pts |
Chantilly is largely a place of homeowners: only 17.8% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 32.0% have no mortgage at all, below the national share of 39.8%. The renter share has risen 2.9 points since 2006–10, in line with the national trend.
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 Chantilly
| Period | Chantilly | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.0% | 8.7% | 10.3% | 11.4% |
| 2010–14 | 3.8% | 7.3% | 10.2% | 11.4% |
| 2015–19 | 2.4% | 6.6% | 9.7% | 11.1% |
| 2020–24 | 1.5% | 5.9% | 8.7% | 9.6% |
| Change | −5.4 pts | −2.8 pts | −1.6 pts | −1.8 pts |
Empty homes are scarce in Chantilly: just 1.5% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. Since 2006–10, vacancy has fallen 5.4 points, as it has nationally. Only four of the 243 Virginia cities with 5,000+ people have a lower vacancy rate.
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 Chantilly
| Period | Chantilly | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 1987 | 1977 | 1978 | 1974 |
| 2010–14 | 1988 | 1978 | 1980 | 1975 |
| 2015–19 | 1988 | 1979 | 1981 | 1977 |
| 2020–24 | 1992 | 1982 | 1984 | 1980 |
| Change | +5 | +6 | +5 | +6 |
Chantilly has newer housing than the country as a whole: the median home was built in 1992, versus 1980 nationally. The median year built has moved up from 1987 in 2006–10, a sign of steady new building.
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 Chantilly
| Period | Chantilly | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,627 | $1,470 | $1,143 | $965 |
| 2010–14 | $1,713 | $1,583 | $1,238 | $1,040 |
| 2015–19 | $2,030 | $1,907 | $1,436 | $1,213 |
| 2020–24 | $2,579 | $2,236 | $1,743 | $1,571 |
| Change | +$953 | +$766 | +$600 | +$606 |
A typical rental in Chantilly costs $2,579 a month with utilities, well above the national median of $1,571. Rent has climbed $953 a month since 2006–10, up 59%, a slower climb than the nation's. The typical renter here spends 30.4% of household income on rent, just over the 30% mark often used to define affordable rent. Rents run highest in the west and lowest in the south.
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 Chantilly
Bachelor's degrees in Chantilly
| Period | Chantilly | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 49.0% | 46.6% | 35.2% | 28.4% |
| 2010–14 | 54.7% | 48.2% | 36.7% | 29.6% |
| 2015–19 | 56.1% | 51.0% | 39.3% | 32.1% |
| 2020–24 | 60.7% | 53.9% | 42.5% | 35.6% |
| Change | +11.6 pts | +7.3 pts | +7.3 pts | +7.2 pts |
Chantilly is highly educated: about six in ten adults 25 and older (60.7%) hold at least a bachelor's degree, far above the national share of 35.6%. The share with a degree is up 11.6 points from 2006–10, in line with the national trend. College graduates are most concentrated in the southeast and least in the center.
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 Chantilly
| Period | Chantilly | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 91.5% | 89.4% | 86.8% | 84.9% |
| 2010–14 | 92.7% | 90.2% | 88.3% | 86.1% |
| 2015–19 | 92.0% | 90.8% | 89.9% | 87.7% |
| 2020–24 | 90.0% | 91.2% | 91.6% | 89.3% |
| Change | −1.5 pts | +1.7 pts | +4.7 pts | +4.3 pts |
High school completion in Chantilly is close to the national rate: 90.0% of adults have a diploma or equivalent, against 89.3%. The share with a diploma is down 1.5 points from 2006–10, even as the national rate rose.
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 Chantilly
| Period | Chantilly | Washington area | Virginia | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.5% | 5.9% | 6.0% | 8.1% |
| 2010–14 | 7.8% | 6.9% | 7.0% | 9.4% |
| 2015–19 | 3.7% | 4.7% | 4.7% | 5.6% |
| 2020–24 | 2.8% | 4.8% | 4.3% | 5.4% |
| Change | −0.7 pts | −1.1 pts | −1.7 pts | −2.7 pts |
Unemployment in Chantilly has been low: just 2.8% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment is down 0.7 points from 2006–10, a smaller shift than nationally. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current 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).
Chantilly 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Chantilly | 3.18 | 40.8 | 7.7% | 17.8% | 1.5% | 1992 | $2,579 | 60.7% | 90.0% | 2.8% |
| Centreville | 2.97 | 37.5 | 10.2% | 27.2% | 2.5% | 1991 | $2,485 | 57.6% | 94.3% | 4.1% |
| Franklin Farm | 3.02 | 44.2 | 3.6% | 6.3% | 3.9% | 1985 | $2,793 | 79.9% | 97.3% | 3.1% |
| Fair Oaks | 2.44 | 36.5 | 5.5% | 55.5% | 5.9% | 1998 | $2,405 | 69.1% | 94.3% | 5.3% |
| South Riding | 3.35 | 38.8 | 7.1% | 16.6% | 2.4% | 2006 | $3,029 | 69.0% | 94.0% | 3.5% |
| McNair | 2.47 | 32.4 | 7.4% | 74.6% | 4.3% | 2004 | $2,368 | 68.1% | 96.2% | 2.4% |
| Clifton | 3.02 | 46.7 | 3.7% | 7.2% | 1.5% | 1989 | $2,463 | 74.3% | 97.6% | 4.9% |
| Yorkshire Park | 3.28 | 48.8 | 7.4% | 0.0% | 10.4% | 1982 | $1,981 | 55.3% | 97.0% | 0.0% |
| Herndon | 3.18 | 36.6 | 9.5% | 33.4% | 5.3% | 1988 | $2,526 | 60.1% | 87.7% | 3.6% |
| Yorkshire | 3.26 | 34.4 | 19.3% | 48.5% | 3.1% | 1990 | $2,068 | 27.6% | 78.5% | 4.0% |
| Reston | 2.31 | 40.5 | 7.4% | 39.3% | 6.2% | 1987 | $2,294 | 72.1% | 95.9% | 4.5% |
All figures 2020–24.
Cities with similar populations: Harleysville, PA · Trussville, AL · Ridgefield, CT · Randolph, NJ · Picayune, MS · Perkasie, PA · Palomas, PR · Newport, RI · Muskego, WI · Moss Point, MS
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 Chantilly. 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.
No other site shows detail at this level for free. We are able to keep this site free by receiving a small commission from the referring links on this page. Please share or cite this page if you aren’t able to otherwise support our work.