Population 7,305 · Census ACS 2020–24
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Population and households in Old Greenwich
Household size in Old Greenwich
| Period | Old Greenwich | Bridgeport area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.97 | 2.71 | 2.57 | 2.68 |
| 2010–14 | 3.06 | 2.80 | 2.61 | 2.73 |
| 2015–19 | 3.11 | 2.76 | 2.57 | 2.71 |
| 2020–24 | 2.98 | 2.75 | 2.55 | 2.65 |
| Change | +0.01 | +0.04 | −0.02 | −0.03 |
Households in Old Greenwich are large by national standards, averaging 2.98 people against 2.65 for the U.S. That usually means more families with children at home. Of the 145 Connecticut cities with 5,000+ people, only nine 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 Old Greenwich
| Period | Old Greenwich | Bridgeport area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 40.1 | 39.4 | 40.0 | 37.7 |
| 2010–14 | 40.3 | 40.3 | 41.0 | 38.6 |
| 2015–19 | 42.4 | 41.5 | 42.0 | 39.6 |
| 2020–24 | 40.7 | 41.6 | 42.1 | 40.1 |
| Change | +0.7 | +2.2 | +2.1 | +2.3 |
Half of the people in Old Greenwich are younger than 40.7 and half are older, close to the national median of 40.1. The median age has crept up from 40.1 in 2006–10, a smaller shift than nationally. Residents skew youngest in the northwest and 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 Old Greenwich
| Period | Old Greenwich | Bridgeport area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.0% | 10.1% | 11.2% | 12.3% |
| 2010–14 | 3.9% | 10.8% | 11.6% | 12.3% |
| 2015–19 | 6.8% | 10.1% | 10.8% | 11.6% |
| 2020–24 | 7.3% | 10.3% | 11.4% | 11.6% |
| Change | −1.7 pts | +0.2 pts | +0.2 pts | −0.6 pts |
Single-parent households are relatively rare in Old Greenwich: 7.3% of households, against 11.6% nationally. The single-parent share has fallen 1.7 points since 2006–10, as it has nationally.
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 Old Greenwich
Renters in Old Greenwich
| Period | Old Greenwich | Bridgeport area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 15.7% | 29.3% | 30.8% | 33.3% |
| 2010–14 | 13.6% | 31.5% | 32.7% | 35.6% |
| 2015–19 | 16.2% | 32.9% | 33.9% | 36.0% |
| 2020–24 | 13.9% | 34.0% | 33.5% | 34.8% |
| Change | −1.8 pts | +4.6 pts | +2.7 pts | +1.5 pts |
Only 13.9% of households in Old Greenwich rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 28.3% have no mortgage at all, well below the national share of 39.8%. The renter share has fallen 1.8 points since 2006–10, even as the national share rose.
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 Old Greenwich
| Period | Old Greenwich | Bridgeport area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.3% | 8.3% | 8.8% | 11.4% |
| 2010–14 | 7.8% | 8.8% | 9.5% | 11.4% |
| 2015–19 | 6.0% | 9.4% | 10.2% | 11.1% |
| 2020–24 | 6.8% | 7.0% | 7.9% | 9.6% |
| Change | +0.5 pts | −1.4 pts | −0.9 pts | −1.8 pts |
Vacancy is on the low side in Old Greenwich: 6.8% of homes sit empty, against 9.6% nationally, which points to steady demand for housing. The picture is much the same across the Bridgeport area.
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 Old Greenwich
| Period | Old Greenwich | Bridgeport area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 1954 | 1961 | 1963 | 1974 |
| 2010–14 | 1957 | 1962 | 1964 | 1975 |
| 2015–19 | 1963 | 1964 | 1964 | 1977 |
| 2020–24 | 1967 | 1967 | 1967 | 1980 |
| Change | +12 | +6 | +4 | +6 |
Old Greenwich is a place of older homes: half were built before 1967, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. The median year built has moved up from 1954 in 2006–10, a sign of steady new building. Newer construction is concentrated in the east, while the northwest 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 Old Greenwich
| Period | Old Greenwich | Bridgeport area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,792 | $1,394 | $1,127 | $965 |
| 2010–14 | $1,943 | $1,488 | $1,218 | $1,040 |
| 2015–19 | $2,229 | $1,784 | $1,380 | $1,213 |
| 2020–24 | $3,429 | $2,167 | $1,702 | $1,571 |
| Change | +$1,637 | +$773 | +$575 | +$606 |
The median renter in Old Greenwich pays $3,429 a month for rent and utilities, well above the national median of $1,571. Rents are up $1,637 a month from 2006–10, a 91% jump, faster than rents rose nationally. Rent takes 30.3% of the typical renter's income, just over the 30% mark often used to define affordable rent. No other Connecticut city with 5,000+ people has higher rents.
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 Old Greenwich
Bachelor's degrees in Old Greenwich
| Period | Old Greenwich | Bridgeport area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 79.7% | 43.2% | 35.5% | 28.4% |
| 2010–14 | 82.2% | 45.5% | 37.0% | 29.6% |
| 2015–19 | 79.0% | 47.9% | 39.2% | 32.1% |
| 2020–24 | 83.9% | 50.4% | 42.3% | 35.6% |
| Change | +4.2 pts | +7.2 pts | +6.8 pts | +7.2 pts |
College graduates are unusually common in Old Greenwich: 83.9% of adults 25 and older have a bachelor's degree or higher, against 35.6% nationally. Education tends to track local incomes and the kinds of jobs nearby. Since 2006–10, the share with a degree has risen 4.2 points, mirroring the country. Of the 145 Connecticut cities with 5,000+ people, only two 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 Old Greenwich
| Period | Old Greenwich | Bridgeport area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 98.5% | 87.7% | 88.1% | 84.9% |
| 2010–14 | 98.8% | 88.8% | 89.2% | 86.1% |
| 2015–19 | 97.9% | 89.8% | 90.4% | 87.7% |
| 2020–24 | 98.6% | 89.7% | 91.2% | 89.3% |
| Change | +0.1 pts | +2.0 pts | +3.1 pts | +4.3 pts |
Finishing high school is nearly universal in Old Greenwich: 98.6% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Only seven of the 145 Connecticut cities with 5,000+ people 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 Old Greenwich
| Period | Old Greenwich | Bridgeport area | Connecticut | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.2% | 7.6% | 7.8% | 8.1% |
| 2010–14 | 7.0% | 9.6% | 9.7% | 9.4% |
| 2015–19 | 1.9% | 6.5% | 6.2% | 5.6% |
| 2020–24 | 4.5% | 5.8% | 5.6% | 5.4% |
| Change | −1.6 pts | −1.9 pts | −2.1 pts | −2.7 pts |
Unemployment in Old Greenwich runs below the national rate: 4.5% of the labor force was out of work and looking, against 5.4% nationally. Unemployment has fallen 1.6 points since 2006–10, as it has 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).
Old Greenwich 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Old Greenwich | 2.98 | 40.7 | 7.3% | 13.9% | 6.8% | 1967 | $3,429 | 83.9% | 98.6% | 4.5% |
| Riverside | 3.09 | 41.0 | 6.5% | 19.4% | 4.2% | 1963 | $2,794 | 78.6% | 97.8% | 5.3% |
| Cos Cob | 2.78 | 39.9 | 10.2% | 30.4% | 5.4% | 1963 | $3,093 | 74.8% | 96.0% | 5.3% |
| Stamford | 2.60 | 39.3 | 10.3% | 51.2% | 6.8% | 1974 | $2,458 | 50.9% | 88.7% | 4.9% |
| Greenwich | 2.72 | 45.2 | 9.4% | 34.8% | 13.3% | 1962 | $2,809 | 68.8% | 94.9% | 6.3% |
| Darien | 3.10 | 37.9 | 7.5% | 17.6% | 7.4% | 1959 | $2,988 | 85.6% | 98.3% | 5.1% |
| Port Chester | 2.92 | 40.6 | 16.4% | 53.7% | 4.2% | 1956 | $2,121 | 35.4% | 77.8% | 5.5% |
| Rye Brook | 2.85 | 43.3 | 10.2% | 14.4% | 4.4% | 1968 | $2,440 | 79.2% | 97.0% | 6.4% |
| Purchase | 3.21 | 31.7 | 5.1% | 24.3% | 9.6% | 1986 | $2,934 | 65.3% | 98.6% | 9.1% |
| Rye | 2.95 | 44.2 | 8.3% | 29.5% | 9.3% | 1958 | $2,740 | 81.1% | 96.5% | 5.7% |
| Harrison | 2.96 | 40.4 | 9.5% | 41.4% | 7.5% | 1962 | $2,768 | 58.8% | 93.2% | 4.5% |
All figures 2020–24.
Cities with similar populations: Mound, MN · Poolesville, MD · Polk City, IA · Point Pleasant, WV · Pine Brook, NJ · Mount Vernon, KY · Mount Gilead, OH · Mount Carmel, PA · Mount Carmel, IL · Port Isabel, TX
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 Old Greenwich. 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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