Population 6,372 · 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 Green Knoll: Best Neighborhoods · Walk Grade · Household income · Home prices · Race · Politics · Traffic noise · Internet
Population and households in Green Knoll
Household size in Green Knoll
| Period | Green Knoll | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.58 | 2.79 | 2.77 | 2.68 |
| 2010–14 | 2.74 | 2.85 | 2.82 | 2.73 |
| 2015–19 | 2.72 | 2.82 | 2.78 | 2.71 |
| 2020–24 | 2.70 | 2.79 | 2.76 | 2.65 |
| Change | +0.12 | −0.00 | −0.01 | −0.03 |
At 2.70 people per household, Green Knoll sits close to the national average of 2.65. The typical household here is smaller than in the wider New York area, where it has 2.79 people. Household size has climbed from 2.58 in 2006–10, even as the national average fell.
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 Green Knoll
| Period | Green Knoll | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 44.5 | 38.0 | 39.1 | 37.7 |
| 2010–14 | 42.7 | 38.7 | 40.0 | 38.6 |
| 2015–19 | 45.8 | 39.8 | 41.0 | 39.6 |
| 2020–24 | 43.9 | 40.4 | 40.9 | 40.1 |
| Change | −0.6 | +2.4 | +1.8 | +2.3 |
The median resident of Green Knoll is 43.9 years old, older than the national median of 40.1. The median age has edged down from 44.5 in 2006–10, even as the national median rose. The youngest areas are in the northwest, the oldest in the southeast.
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 Green Knoll
| Period | Green Knoll | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.9% | 13.1% | 11.6% | 12.3% |
| 2010–14 | 5.0% | 12.8% | 11.8% | 12.3% |
| 2015–19 | 4.4% | 11.4% | 10.8% | 11.6% |
| 2020–24 | 4.1% | 11.6% | 11.3% | 11.6% |
| Change | +0.2 pts | −1.5 pts | −0.4 pts | −0.6 pts |
Single-parent households are relatively rare in Green Knoll: 4.1% of households, against 11.6% nationally. Green Knoll has a lower share of single-parent households than at least four in five New Jersey cities.
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 Green Knoll
Renters in Green Knoll
| Period | Green Knoll | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 20.3% | 47.1% | 33.1% | 33.3% |
| 2010–14 | 27.0% | 48.7% | 35.0% | 35.6% |
| 2015–19 | 21.8% | 48.8% | 36.1% | 36.0% |
| 2020–24 | 16.6% | 48.6% | 36.2% | 34.8% |
| Change | −3.8 pts | +1.5 pts | +3.1 pts | +1.5 pts |
Green Knoll is largely a place of homeowners: only 16.6% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. About three in ten owners (30.0%) have paid off their mortgages, below the national share of 39.8%. The renter share has fallen 3.8 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 Green Knoll
| Period | Green Knoll | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.9% | 9.1% | 9.1% | 11.4% |
| 2010–14 | 3.3% | 9.0% | 9.3% | 11.4% |
| 2015–19 | 2.1% | 9.1% | 9.3% | 11.1% |
| 2020–24 | 4.9% | 7.9% | 6.6% | 9.6% |
| Change | −1.0 pts | −1.2 pts | −2.5 pts | −1.8 pts |
Only 4.9% of homes in Green Knoll are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Vacancy is down 1.0 points from 2006–10, as it has 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 Green Knoll
| Period | Green Knoll | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 1972 | 1957 | 1965 | 1974 |
| 2010–14 | 1975 | 1958 | 1966 | 1975 |
| 2015–19 | 1974 | 1959 | 1967 | 1977 |
| 2020–24 | 1975 | 1962 | 1969 | 1980 |
| Change | +2 | +5 | +5 | +6 |
Homes in Green Knoll run a bit older than the national norm, with a median build year of 1975 against 1980. Even so, homes here are newer than in the New York area as a whole, where the median home dates to 1962. The newest homes are mostly in the center, the oldest in the north.
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 Green Knoll
| Period | Green Knoll | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,568 | $1,268 | $1,246 | $965 |
| 2010–14 | $1,923 | $1,377 | $1,324 | $1,040 |
| 2015–19 | $1,857 | $1,645 | $1,522 | $1,213 |
| 2020–24 | $1,927 | $2,060 | $1,896 | $1,571 |
| Change | +$359 | +$792 | +$651 | +$606 |
A typical rental in Green Knoll costs $1,927 a month with utilities, well above the national median of $1,571. Locally, though, rents here are lower than in the wider New York area ($2,060). Rent has climbed $359 a month since 2006–10, up 23%, a slower climb than the nation's. The typical renter here spends 28.4% of household income on rent, just 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 Green Knoll
Bachelor's degrees in Green Knoll
| Period | Green Knoll | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 48.3% | 35.0% | 34.7% | 28.4% |
| 2010–14 | 55.8% | 36.7% | 36.4% | 29.6% |
| 2015–19 | 60.4% | 39.9% | 39.6% | 32.1% |
| 2020–24 | 64.1% | 43.6% | 43.4% | 35.6% |
| Change | +15.8 pts | +8.6 pts | +8.6 pts | +7.2 pts |
College graduates are unusually common in Green Knoll: 64.1% 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. The share with a degree is up 15.8 points from 2006–10, in line with the national trend.
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 Green Knoll
| Period | Green Knoll | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 92.4% | 83.7% | 87.0% | 84.9% |
| 2010–14 | 95.5% | 84.6% | 88.1% | 86.1% |
| 2015–19 | 95.3% | 86.2% | 89.5% | 87.7% |
| 2020–24 | 97.5% | 86.9% | 90.2% | 89.3% |
| Change | +5.1 pts | +3.3 pts | +3.2 pts | +4.3 pts |
Finishing high school is nearly universal in Green Knoll: 97.5% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. Since 2006–10, the share with a diploma has risen 5.1 points, as it has nationally. Green Knoll has a higher share of high school graduates than at least four in five New Jersey cities.
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 Green Knoll
| Period | Green Knoll | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.8% | 7.9% | 7.9% | 8.1% |
| 2010–14 | 8.3% | 9.5% | 9.8% | 9.4% |
| 2015–19 | 1.5% | 5.7% | 5.6% | 5.6% |
| 2020–24 | 4.3% | 6.9% | 6.4% | 5.4% |
| Change | −2.6 pts | −0.9 pts | −1.5 pts | −2.7 pts |
Jobs have been a little easier to find in Green Knoll than nationally: unemployment was 4.3%, against 5.4%. Since 2006–10, unemployment has fallen 2.6 points, mirroring the country. 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).
Green Knoll 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Green Knoll | 2.70 | 43.9 | 4.1% | 16.6% | 4.9% | 1975 | $1,927 | 64.1% | 97.5% | 4.3% |
| Bridgewater | 3.17 | 43.8 | 5.8% | 12.1% | 4.6% | 1972 | $2,374 | 64.0% | 97.8% | 2.6% |
| Raritan | 2.52 | 41.5 | 2.0% | 50.3% | 1.4% | 1978 | $2,057 | 44.3% | 91.9% | 2.8% |
| Somerville | 2.37 | 41.8 | 8.1% | 41.0% | 3.1% | 1975 | $2,192 | 57.4% | 95.7% | 4.4% |
| Finderne | 2.30 | 42.5 | 8.4% | 41.8% | 4.7% | 1968 | $2,089 | 38.1% | 91.5% | 5.4% |
| Bradley Gardens | 2.79 | 40.7 | 8.4% | 10.3% | 2.9% | 1983 | $2,691 | 64.3% | 95.6% | 3.7% |
| Martinsville | 2.89 | 42.9 | 3.1% | 2.9% | 6.6% | 1977 | $2,039 | 73.9% | 98.8% | 4.3% |
| North Branch Depot | 2.36 | 51.9 | 6.4% | 19.4% | 2.0% | 1966 | $2,580 | 48.0% | 99.4% | 7.9% |
| Bedminster | 2.09 | 49.1 | 5.3% | 20.6% | 2.2% | 1980 | $2,385 | 65.9% | 97.3% | 4.5% |
| Manville | 2.52 | 45.9 | 8.5% | 24.2% | 5.6% | 1959 | $1,830 | 27.4% | 91.2% | 3.4% |
| Bound Brook | 2.81 | 38.0 | 16.6% | 49.3% | 3.6% | 1958 | $2,019 | 31.5% | 85.1% | 4.2% |
All figures 2020–24.
Cities with similar populations: Bayville, NY · Spring Lake Park, MN · Grant, MI · South Berwick, ME · Sophia, NC · Solvay, NY · Snyderville, UT · Snow Camp, NC · Smiths Station, AL · Berryville, VA
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 Green Knoll. 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.