Population 19,529 · Census ACS 2020–24
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Population and households in Southbury
Household size in Southbury
| Period | Southbury | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.56 | 2.55 | 2.57 | 2.68 |
| 2010–14 | 2.59 | 2.60 | 2.61 | 2.73 |
| 2015–19 | 2.53 | 2.55 | 2.57 | 2.71 |
| 2020–24 | 2.39 | 2.53 | 2.55 | 2.65 |
| Change | −0.17 | −0.02 | −0.02 | −0.03 |
Households in Southbury are small: just 2.39 people on average, compared with 2.65 nationally. That is typical of places where many people live alone or as couples, and fewer have children at home. Since 2006–10, household size has dropped from 2.56, a much bigger shift than nationally.
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 Southbury
| Period | Southbury | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 48.6 | 39.4 | 40.0 | 37.7 |
| 2010–14 | 52.0 | 40.3 | 41.0 | 38.6 |
| 2015–19 | 52.4 | 41.4 | 42.0 | 39.6 |
| 2020–24 | 53.0 | 41.7 | 42.1 | 40.1 |
| Change | +4.3 | +2.3 | +2.1 | +2.3 |
With a median age of 53.0, Southbury is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. The median age has climbed from 48.6 in 2006–10, mirroring the country. Only three of the 145 Connecticut cities with 5,000+ people are older.
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 Southbury
| Period | Southbury | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.0% | 12.7% | 11.2% | 12.3% |
| 2010–14 | 7.3% | 12.4% | 11.6% | 12.3% |
| 2015–19 | 6.7% | 12.0% | 10.8% | 11.6% |
| 2020–24 | 3.3% | 13.5% | 11.4% | 11.6% |
| Change | −1.7 pts | +0.8 pts | +0.2 pts | −0.6 pts |
Single-parent households are relatively rare in Southbury: 3.3% of households, against 11.6% nationally. The single-parent share is down 1.7 points from 2006–10, mirroring the country. Of the 145 Connecticut cities with 5,000+ people, only four have a lower share of single-parent households.
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 Southbury
Renters in Southbury
| Period | Southbury | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 10.6% | 34.7% | 30.8% | 33.3% |
| 2010–14 | 14.0% | 36.8% | 32.7% | 35.6% |
| 2015–19 | 14.6% | 38.2% | 33.9% | 36.0% |
| 2020–24 | 11.8% | 37.6% | 33.5% | 34.8% |
| Change | +1.2 pts | +2.9 pts | +2.7 pts | +1.5 pts |
Southbury is overwhelmingly a place of homeowners: only 11.8% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. More than four in ten owners (43.4%) have paid off their mortgages, above the national share of 39.8%. Since 2006–10, the renter share has edged up 1.2 points, 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 Southbury
| Period | Southbury | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.1% | 9.1% | 8.8% | 11.4% |
| 2010–14 | 9.5% | 10.6% | 9.5% | 11.4% |
| 2015–19 | 8.6% | 10.8% | 10.2% | 11.1% |
| 2020–24 | 6.5% | 8.0% | 7.9% | 9.6% |
| Change | −0.6 pts | −1.2 pts | −0.9 pts | −1.8 pts |
Fewer homes sit empty in Southbury than nationally: 6.5%, against 9.6% for the U.S. Vacancy has edged down 0.6 points since 2006–10, a smaller shift than nationally.
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 Southbury
| Period | Southbury | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 1978 | 1961 | 1963 | 1974 |
| 2010–14 | 1977 | 1961 | 1964 | 1975 |
| 2015–19 | 1976 | 1961 | 1964 | 1977 |
| 2020–24 | 1978 | 1964 | 1967 | 1980 |
| Change | +1 | +3 | +4 | +6 |
Homes in Southbury are about the same age as the nation's housing: the median home was built in 1978, versus 1980 nationally. Homes here are newer than in the wider New Haven area, where the median home dates to 1964. Newer construction is concentrated in the northeast, while the southwest 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 Southbury
| Period | Southbury | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,290 | $1,093 | $1,127 | $965 |
| 2010–14 | $1,395 | $1,175 | $1,218 | $1,040 |
| 2015–19 | $1,907 | $1,288 | $1,380 | $1,213 |
| 2020–24 | $1,912 | $1,584 | $1,702 | $1,571 |
| Change | +$622 | +$491 | +$575 | +$606 |
A typical rental in Southbury costs $1,912 a month with utilities, well above the national median of $1,571. Rents are up $622 a month from 2006–10, a 48% rise, a slower climb than the nation's. The typical renter here spends 26.6% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.
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 Southbury
Bachelor's degrees in Southbury
| Period | Southbury | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 46.4% | 31.6% | 35.5% | 28.4% |
| 2010–14 | 47.0% | 33.1% | 37.0% | 29.6% |
| 2015–19 | 51.3% | 34.5% | 39.2% | 32.1% |
| 2020–24 | 51.8% | 38.5% | 42.3% | 35.6% |
| Change | +5.4 pts | +6.9 pts | +6.8 pts | +7.2 pts |
Southbury is highly educated: just over half of adults 25 and older (51.8%) hold at least a bachelor's degree, far above the national share of 35.6%. Since 2006–10, the share with a degree has risen 5.4 points, as it has nationally.
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 Southbury
| Period | Southbury | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 92.3% | 87.4% | 88.1% | 84.9% |
| 2010–14 | 93.6% | 88.4% | 89.2% | 86.1% |
| 2015–19 | 95.2% | 89.6% | 90.4% | 87.7% |
| 2020–24 | 95.1% | 90.6% | 91.2% | 89.3% |
| Change | +2.9 pts | +3.2 pts | +3.1 pts | +4.3 pts |
High school completion is high in Southbury: 95.1% 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 2.9 points since 2006–10, in line with the national trend.
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 Southbury
| Period | Southbury | New Haven area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.6% | 8.5% | 7.8% | 8.1% |
| 2010–14 | 8.5% | 10.7% | 9.7% | 9.4% |
| 2015–19 | 3.7% | 6.7% | 6.2% | 5.6% |
| 2020–24 | 3.1% | 6.4% | 5.6% | 5.4% |
| Change | −3.5 pts | −2.2 pts | −2.1 pts | −2.7 pts |
The job market in Southbury has been strong: just 3.1% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment is down 3.5 points from 2006–10, in line with the national trend. 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).
Southbury 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Southbury | 2.39 | 53.0 | 3.3% | 11.8% | 6.5% | 1978 | $1,912 | 51.8% | 95.1% | 3.1% |
| Cedarhurst | 3.08 | 39.1 | 10.5% | 8.3% | 5.0% | 1984 | $1,999 | 56.1% | 99.0% | 3.3% |
| Sandy Hook | 2.83 | 44.9 | 9.3% | 6.4% | 12.6% | 1980 | $2,094 | 60.8% | 97.1% | 3.9% |
| Roxbury Falls | 2.23 | 55.9 | 3.3% | 18.1% | 19.7% | 1982 | $1,654 | 52.1% | 92.7% | 3.4% |
| Woodbury | 2.22 | 51.7 | 7.3% | 22.5% | 9.5% | 1978 | $1,667 | 49.5% | 99.0% | 4.1% |
| Oxford | 2.64 | 45.9 | 1.6% | 9.4% | 4.1% | 1988 | $1,389 | 46.9% | 97.5% | 2.4% |
| Middlebury | 2.68 | 44.8 | 7.8% | 13.4% | 6.1% | 1977 | $628 | 53.4% | 94.3% | 4.0% |
| Roxbury | 2.14 | 55.6 | 4.0% | 16.3% | 24.4% | 1980 | $2,170 | 65.6% | 99.0% | 3.7% |
| Newtown | 2.86 | 44.0 | 5.5% | 12.9% | 7.0% | 1977 | $2,124 | 57.0% | 94.4% | 3.2% |
| Minortown | 2.68 | 60.4 | 5.8% | 0.0% | 7.8% | 1995 | $1,660 | 68.2% | 100.0% | 3.2% |
| Bridgewater | 2.43 | 54.5 | 2.1% | 7.4% | 18.1% | 1975 | $1,532 | 58.6% | 98.7% | 4.6% |
All figures 2020–24.
Cities with similar populations: Somerton, AZ · Elkins Park, PA · Enola, PA · Satellite Beach, FL · Sellersburg, IN · Sharon, MA · Sherrelwood, CO · Sienna Plantation, TX · Sikeston, MO · East Lake, FL
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 Southbury. 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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