Population 389 · Census ACS 2020–24
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Median age by neighborhoodHistory and comparison ↓︎
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Population and households in Greenwich
Household size in Greenwich
| Period | Greenwich | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 2.79 | 2.69 | 2.68 |
| 2010–14 | 2.61 | 2.71 | 2.73 |
| 2015–19 | 2.65 | 2.66 | 2.71 |
| 2020–24 | 2.49 | 2.58 | 2.65 |
| Change | −0.30 | −0.11 | −0.03 |
Households in Greenwich run a little small, averaging 2.49 people against 2.65 nationally, which usually means more singles and couples and fewer children. Since 2006–10, household size has dropped from 2.79, but in a place this small, much of that may be survey noise rather than real change.
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 Greenwich
| Period | Greenwich | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 44.7 | 37.6 | 37.7 |
| 2010–14 | 46.1 | 38.5 | 38.6 |
| 2015–19 | 41.9 | 39.6 | 39.6 |
| 2020–24 | 42.2 | 40.2 | 40.1 |
| Change | −2.5 | +2.6 | +2.3 |
Greenwich skews a little older than the country: its median age is 42.2, against 40.1 nationally.
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 Greenwich
| Period | Greenwich | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 6.7% | 11.7% | 12.3% |
| 2010–14 | 4.7% | 11.7% | 12.3% |
| 2015–19 | 11.1% | 11.1% | 11.6% |
| 2020–24 | 9.2% | 11.3% | 11.6% |
| Change | +2.5 pts | −0.4 pts | −0.6 pts |
Single-parent households are less common in Greenwich than nationally: 9.2%, against 11.6%.
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 Greenwich
Renters in Greenwich
| Period | Greenwich | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 10.5% | 30.8% | 33.3% |
| 2010–14 | 18.9% | 33.1% | 35.6% |
| 2015–19 | 19.5% | 33.9% | 36.0% |
| 2020–24 | 10.1% | 32.9% | 34.8% |
| Change | −0.4 pts | +2.1 pts | +1.5 pts |
Only 10.1% of households in Greenwich rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Among homeowners, 51.2% have no mortgage at all, well above the national share of 39.8%.
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 Greenwich
| Period | Greenwich | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 7.2% | 10.0% | 11.4% |
| 2010–14 | 6.1% | 10.1% | 11.4% |
| 2015–19 | 10.1% | 9.8% | 11.1% |
| 2020–24 | 8.1% | 8.1% | 9.6% |
| Change | +0.9 pts | −1.9 pts | −1.8 pts |
Vacancy is on the low side in Greenwich: 8.1% of homes sit empty, against 9.6% nationally, which points to steady demand for housing. That is in line with the rest of Illinois.
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 Greenwich
| Period | Greenwich | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 1968 | 1966 | 1974 |
| 2010–14 | 1962 | 1967 | 1975 |
| 2015–19 | 1964 | 1968 | 1977 |
| 2020–24 | 1969 | 1970 | 1980 |
| Change | +1 | +4 | +6 |
The housing in Greenwich is old by national standards: the median home dates to 1969, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. That is in line with the rest of Illinois.
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 Greenwich
| Period | Greenwich | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | $785 | $953 | $965 |
| 2010–14 | $910 | $1,028 | $1,040 |
| 2015–19 | $891 | $1,165 | $1,213 |
| 2020–24 | $994 | $1,428 | $1,571 |
| Change | +$208 | +$475 | +$606 |
A typical rental in Greenwich costs $994 a month with utilities, well below the national median of $1,571. Rent takes 10.5% 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 Greenwich
Bachelor's degrees in Greenwich
| Period | Greenwich | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 13.1% | 31.2% | 28.4% |
| 2010–14 | 16.7% | 32.4% | 29.6% |
| 2015–19 | 18.2% | 34.7% | 32.1% |
| 2020–24 | 27.7% | 37.7% | 35.6% |
| Change | +14.6 pts | +6.5 pts | +7.2 pts |
College degrees are less common in Greenwich than nationally: 27.7% of adults 25 and older have a bachelor's or higher, against 35.6%.
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 Greenwich
| Period | Greenwich | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 87.6% | 86.3% | 84.9% |
| 2010–14 | 92.8% | 87.5% | 86.1% |
| 2015–19 | 94.6% | 89.1% | 87.7% |
| 2020–24 | 94.1% | 90.3% | 89.3% |
| Change | +6.5 pts | +4.0 pts | +4.3 pts |
High school completion in Greenwich is above the national rate: 94.1% of adults have a diploma, against 89.3%.
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 Greenwich
| Period | Greenwich | Illinois | U.S. |
|---|---|---|---|
| 2006–10 | 4.7% | 8.7% | 8.1% |
| 2010–14 | 7.3% | 10.2% | 9.4% |
| 2015–19 | 3.8% | 6.1% | 5.6% |
| 2020–24 | 5.5% | 6.0% | 5.4% |
| Change | +0.9 pts | −2.7 pts | −2.7 pts |
At 5.5%, unemployment in Greenwich is close to the national rate of 5.4%. 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).
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Greenwich | 2.49 | 42.2 | 9.2% | 10.1% | 8.1% | 1969 | $994 | 27.7% | 94.1% | 5.5% |
| Limestone | 2.56 | 42.9 | 7.4% | 10.8% | 6.4% | 1974 | $1,116 | 24.7% | 95.8% | 3.4% |
| Lehigh | 2.56 | 41.3 | 8.3% | 12.7% | 6.4% | 1972 | $1,150 | 22.8% | 95.8% | 3.6% |
| Kankakee | 2.56 | 38.6 | 21.1% | 42.5% | 14.7% | 1958 | $1,130 | 15.3% | 85.6% | 4.6% |
| Irwin | 2.72 | 42.2 | 7.6% | 14.9% | 9.2% | 1969 | $1,018 | 22.3% | 97.7% | 3.2% |
| Otto | 2.98 | 34.7 | 32.7% | 35.1% | 7.0% | 1975 | $1,110 | 10.8% | 94.4% | 9.8% |
| Bourbonnais | 2.52 | 38.7 | 12.6% | 24.4% | 6.9% | 1987 | $1,325 | 31.1% | 95.3% | 5.4% |
| Bradley | 2.47 | 36.9 | 12.3% | 35.6% | 7.7% | 1975 | $1,166 | 21.0% | 93.4% | 4.9% |
| Sammons Point | 2.97 | 34.1 | 34.2% | 37.0% | 8.2% | 1975 | $1,121 | 11.2% | 93.9% | 10.2% |
| Bonfield | 2.45 | 45.8 | 8.0% | 9.9% | 2.8% | 1972 | $1,125 | 14.3% | 94.8% | 6.7% |
| Goodrich | 2.39 | 47.4 | 9.5% | 19.0% | 6.0% | 1974 | $1,061 | 26.3% | 96.3% | 6.8% |
All figures 2020–24.
Cities with similar populations: Briarcliff, AR · Beason, IL · Belott, TX · Ben Avon Heights, PA · Bethlehem, OH · Blakely, AR · Blanford, IN · Blencoe, IA · Blount, WV · Bluehole, KY
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 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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