Population 18,759 · Census ACS 2020–24
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Population and households in Sudbury
Household size in Sudbury
| Period | Sudbury | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.05 | 2.54 | 2.53 | 2.68 |
| 2010–14 | 2.97 | 2.59 | 2.57 | 2.73 |
| 2015–19 | 2.98 | 2.60 | 2.57 | 2.71 |
| 2020–24 | 3.06 | 2.55 | 2.52 | 2.65 |
| Change | +0.01 | +0.01 | −0.01 | −0.03 |
Households in Sudbury are large by national standards, averaging 3.06 people against 2.65 for the U.S. That usually means more families with children at home. Of the 275 Massachusetts cities with 5,000+ people, only two have larger households.
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 Sudbury
| Period | Sudbury | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 43.1 | 38.9 | 39.4 | 37.7 |
| 2010–14 | 45.2 | 39.7 | 40.1 | 38.6 |
| 2015–19 | 44.1 | 40.4 | 41.0 | 39.6 |
| 2020–24 | 42.6 | 40.8 | 41.4 | 40.1 |
| Change | −0.5 | +1.9 | +2.0 | +2.3 |
Sudbury skews a little older than the country: its median age is 42.6, against 40.1 nationally. The median age has edged down from 43.1 in 2006–10, even as the national median rose. The youngest areas are in the east, the oldest in the south.
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 Sudbury
| Period | Sudbury | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.0% | 10.4% | 11.0% | 12.3% |
| 2010–14 | 4.9% | 10.2% | 11.0% | 12.3% |
| 2015–19 | 4.9% | 9.6% | 10.3% | 11.6% |
| 2020–24 | 6.9% | 9.7% | 10.6% | 11.6% |
| Change | −0.1 pts | −0.7 pts | −0.4 pts | −0.6 pts |
Single-parent households are relatively rare in Sudbury: 6.9% of households, against 11.6% nationally. The single-parent share is little changed from 2006–10, while 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 Sudbury
Renters in Sudbury
| Period | Sudbury | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.9% | 36.8% | 36.0% | 33.3% |
| 2010–14 | 5.5% | 38.5% | 37.7% | 35.6% |
| 2015–19 | 8.5% | 38.3% | 37.6% | 36.0% |
| 2020–24 | 10.0% | 38.4% | 37.5% | 34.8% |
| Change | +4.0 pts | +1.6 pts | +1.5 pts | +1.5 pts |
Sudbury is overwhelmingly a place of homeowners: only 10.0% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Nearly a third of owners (32.2%) have paid off their mortgages, below the national share of 39.8%. The renter share has risen 4.0 points since 2006–10, mirroring the country.
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 Sudbury
| Period | Sudbury | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.3% | 8.1% | 9.5% | 11.4% |
| 2010–14 | 3.3% | 7.4% | 9.1% | 11.4% |
| 2015–19 | 2.6% | 7.3% | 8.9% | 11.1% |
| 2020–24 | 4.6% | 6.7% | 7.9% | 9.6% |
| Change | −0.8 pts | −1.4 pts | −1.6 pts | −1.8 pts |
Empty homes are scarce in Sudbury: just 4.6% sit vacant, compared with 9.6% nationally, a sign of a tight housing market. Vacancy has edged down 0.8 points since 2006–10, 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 Sudbury
| Period | Sudbury | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 1971 | 1958 | 1958 | 1974 |
| 2010–14 | 1973 | 1959 | 1959 | 1975 |
| 2015–19 | 1973 | 1961 | 1961 | 1977 |
| 2020–24 | 1977 | 1964 | 1963 | 1980 |
| Change | +5 | +6 | +5 | +6 |
The typical home in Sudbury was built around 1977, about the same vintage as the country's housing overall (1980). Homes here are newer than in the wider Boston area, where the median home dates to 1964. The median year built has moved up from 1971 in 2006–10, a sign of steady new building. The newest homes are mostly in the south, the oldest in the east.
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 Sudbury
| Period | Sudbury | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,201 | $1,171 | $1,085 | $965 |
| 2010–14 | $768 | $1,251 | $1,157 | $1,040 |
| 2015–19 | $1,135 | $1,537 | $1,398 | $1,213 |
| 2020–24 | $1,526 | $2,051 | $1,860 | $1,571 |
| Change | +$324 | +$881 | +$775 | +$606 |
Rent in Sudbury runs $1,526 a month at the median, utilities included, close to the U.S. median of $1,571. Rents here are lower than in the wider Boston area ($2,051). Rent has climbed $324 a month since 2006–10, up 27%, a slower climb than the nation's. Rent takes 24.6% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent.
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 Sudbury
Bachelor's degrees in Sudbury
| Period | Sudbury | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 74.1% | 42.2% | 38.5% | 28.4% |
| 2010–14 | 78.6% | 44.1% | 40.1% | 29.6% |
| 2015–19 | 80.4% | 48.2% | 43.6% | 32.1% |
| 2020–24 | 83.4% | 51.9% | 47.2% | 35.6% |
| Change | +9.3 pts | +9.7 pts | +8.7 pts | +7.2 pts |
Sudbury is highly educated: just over eight in ten adults 25 and older (83.4%) hold at least a bachelor's degree, far above the national share of 35.6%. The share with a degree is up 9.3 points from 2006–10, mirroring the country. Only 12 of the 275 Massachusetts cities with 5,000+ people have a higher share of college graduates.
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 Sudbury
| Period | Sudbury | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 96.7% | 89.8% | 88.4% | 84.9% |
| 2010–14 | 98.2% | 90.6% | 89.3% | 86.1% |
| 2015–19 | 98.9% | 91.5% | 90.5% | 87.7% |
| 2020–24 | 98.7% | 91.8% | 91.0% | 89.3% |
| Change | +2.0 pts | +2.1 pts | +2.6 pts | +4.3 pts |
Finishing high school is nearly universal in Sudbury: 98.7% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. The share with a diploma has risen 2.0 points since 2006–10, as it has nationally. Of the 275 Massachusetts cities with 5,000+ people, only 11 have a higher share of high school graduates.
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 Sudbury
| Period | Sudbury | Boston area | Massachusetts | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.7% | 7.0% | 7.5% | 8.1% |
| 2010–14 | 4.6% | 8.0% | 8.7% | 9.4% |
| 2015–19 | 3.8% | 4.6% | 5.0% | 5.6% |
| 2020–24 | 4.1% | 4.9% | 5.2% | 5.4% |
| Change | −0.6 pts | −2.1 pts | −2.3 pts | −2.7 pts |
Unemployment in Sudbury runs below the national rate: 4.1% of the labor force was out of work and looking, against 5.4% nationally. Unemployment is down 0.6 points from 2006–10, a smaller shift than nationally. 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).
Sudbury 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Sudbury | 3.06 | 42.6 | 6.9% | 10.0% | 4.6% | 1977 | $1,526 | 83.4% | 98.7% | 4.1% |
| Pine Lake | 2.81 | 44.9 | 6.4% | 21.3% | 5.0% | 1982 | $1,712 | 80.2% | 97.7% | 4.8% |
| Maynard | 2.22 | 45.9 | 6.2% | 24.4% | 6.0% | 1960 | $1,821 | 65.1% | 95.0% | 5.5% |
| Wayland | 2.85 | 46.4 | 3.9% | 9.2% | 3.4% | 1968 | $1,635 | 80.3% | 98.8% | 4.2% |
| West Concord | 2.57 | 47.2 | 8.2% | 36.2% | 9.3% | 1975 | $2,624 | 73.8% | 94.9% | 3.8% |
| Cochituate | 2.68 | 45.2 | 6.2% | 16.4% | 7.2% | 1958 | $2,118 | 75.6% | 95.6% | 3.0% |
| Stow | 2.62 | 45.1 | 8.9% | 14.7% | 2.0% | 1971 | $2,248 | 76.5% | 98.4% | 3.6% |
| Framingham | 2.65 | 39.1 | 12.4% | 45.2% | 5.6% | 1966 | $2,011 | 47.5% | 86.2% | 4.9% |
| Concord | 2.76 | 48.3 | 7.1% | 18.1% | 7.3% | 1964 | $2,071 | 84.3% | 98.4% | 4.0% |
| Marlborough | 2.47 | 39.5 | 11.6% | 44.0% | 4.6% | 1971 | $1,921 | 40.5% | 87.5% | 5.4% |
| Lincoln | 2.38 | 53.3 | 6.4% | 23.0% | 8.9% | 1973 | $2,797 | 89.0% | 97.4% | 2.8% |
All figures 2020–24.
Cities with similar populations: Baker, LA · Waunakee, WI · Taft, CA · Swansea, MA · Bethpage, NY · Sulphur Springs, TX · Winthrop Town, MA · Woodbridge, NJ · Barrington, RI · Barceloneta, PR
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 Sudbury. 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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