Population 6,164 · Census ACS 2020–24
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Population and households in Islip Terrace
Household size in Islip Terrace
| Period | Islip Terrace | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 3.25 | 2.79 | 2.68 | 2.68 |
| 2010–14 | 3.07 | 2.85 | 2.72 | 2.73 |
| 2015–19 | 3.34 | 2.82 | 2.69 | 2.71 |
| 2020–24 | 3.16 | 2.79 | 2.65 | 2.65 |
| Change | −0.09 | −0.00 | −0.03 | −0.03 |
Households in Islip Terrace are large by national standards, averaging 3.16 people against 2.65 for the U.S. That usually means more families with children at home. Household size has dropped from 3.25 in 2006–10, 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 Islip Terrace
| Period | Islip Terrace | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.8 | 38.0 | 38.3 | 37.7 |
| 2010–14 | 42.5 | 38.7 | 39.0 | 38.6 |
| 2015–19 | 41.4 | 39.8 | 40.2 | 39.6 |
| 2020–24 | 42.2 | 40.4 | 40.8 | 40.1 |
| Change | +3.4 | +2.4 | +2.5 | +2.3 |
Islip Terrace skews a little older than the country: its median age is 42.2, against 40.1 nationally. Since 2006–10, the median age has climbed from 38.8, mirroring the country.
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 Islip Terrace
| Period | Islip Terrace | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.5% | 13.1% | 13.1% | 12.3% |
| 2010–14 | 7.7% | 12.8% | 12.7% | 12.3% |
| 2015–19 | 10.8% | 11.4% | 11.6% | 11.6% |
| 2020–24 | 7.0% | 11.6% | 11.6% | 11.6% |
| Change | −0.5 pts | −1.5 pts | −1.5 pts | −0.6 pts |
Single parents head only 7.0% of households in Islip Terrace, well below the national share of 11.6%. The single-parent share is down 0.5 points from 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 Islip Terrace
Renters in Islip Terrace
| Period | Islip Terrace | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 12.4% | 47.1% | 44.8% | 33.3% |
| 2010–14 | 12.5% | 48.7% | 46.2% | 35.6% |
| 2015–19 | 17.8% | 48.8% | 46.2% | 36.0% |
| 2020–24 | 10.5% | 48.6% | 45.7% | 34.8% |
| Change | −1.9 pts | +1.5 pts | +0.9 pts | +1.5 pts |
Islip Terrace is overwhelmingly a place of homeowners: only 10.5% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Among homeowners, 48.2% have no mortgage at all, above the national share of 39.8%. Since 2006–10, the renter share has fallen 1.9 points, 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 Islip Terrace
| Period | Islip Terrace | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.2% | 9.1% | 10.3% | 11.4% |
| 2010–14 | 8.7% | 9.0% | 10.4% | 11.4% |
| 2015–19 | 9.1% | 9.1% | 11.0% | 11.1% |
| 2020–24 | 5.4% | 7.9% | 9.7% | 9.6% |
| Change | +1.2 pts | −1.2 pts | −0.6 pts | −1.8 pts |
Only 5.4% of homes in Islip Terrace are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Since 2006–10, vacancy has edged up 1.2 points, even as the national rate fell.
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 Islip Terrace
| Period | Islip Terrace | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 1957 | 1957 | 1956 | 1974 |
| 2010–14 | 1960 | 1958 | 1957 | 1975 |
| 2015–19 | 1963 | 1959 | 1958 | 1977 |
| 2020–24 | 1960 | 1962 | 1961 | 1980 |
| Change | +3 | +5 | +5 | +6 |
The housing in Islip Terrace is old by national standards: the median home dates to 1960, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. The median year built has moved up from 1957 in 2006–10, a sign of steady new building. Newer construction is concentrated in the east, while the south 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 Islip Terrace
| Period | Islip Terrace | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,830 | $1,268 | $1,095 | $965 |
| 2010–14 | $1,579 | $1,377 | $1,201 | $1,040 |
| 2015–19 | $2,402 | $1,645 | $1,426 | $1,213 |
| 2020–24 | $2,635 | $2,060 | $1,794 | $1,571 |
| Change | +$805 | +$792 | +$698 | +$606 |
The median renter in Islip Terrace pays $2,635 a month for rent and utilities, well above the national median of $1,571. Rents are up $805 a month from 2006–10, a 44% rise, a slower climb than the nation's. Rent takes 33.8% of the typical renter's income, well over the 30% mark often used to define affordable rent, so many renters here are stretched.
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 Islip Terrace
Bachelor's degrees in Islip Terrace
| Period | Islip Terrace | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 19.8% | 35.0% | 31.9% | 28.4% |
| 2010–14 | 24.2% | 36.7% | 33.4% | 29.6% |
| 2015–19 | 29.7% | 39.9% | 36.2% | 32.1% |
| 2020–24 | 30.0% | 43.6% | 39.8% | 35.6% |
| Change | +10.2 pts | +8.6 pts | +8.0 pts | +7.2 pts |
About three in ten adults 25 and older in Islip Terrace (30.0%) have a bachelor's degree or higher, a little below the national share of 35.6%. The share with a degree has risen 10.2 points since 2006–10, in line with the national trend. College graduates are most concentrated in the southwest and least in the north.
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 Islip Terrace
| Period | Islip Terrace | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 92.1% | 83.7% | 84.0% | 84.9% |
| 2010–14 | 93.8% | 84.6% | 84.9% | 86.1% |
| 2015–19 | 93.2% | 86.2% | 86.5% | 87.7% |
| 2020–24 | 91.2% | 86.9% | 87.3% | 89.3% |
| Change | −0.9 pts | +3.3 pts | +3.3 pts | +4.3 pts |
About nine in ten adults in Islip Terrace have finished high school (91.2%), a bit above the national rate of 89.3%. The share with a diploma is down 0.9 points from 2006–10, even as the national rate rose. Compared with other New York cities, though, Islip Terrace has a lower share of high school graduates than most.
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 Islip Terrace
| Period | Islip Terrace | New York area | New York | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.6% | 7.9% | 7.7% | 8.1% |
| 2010–14 | 6.4% | 9.5% | 9.2% | 9.4% |
| 2015–19 | 3.6% | 5.7% | 5.7% | 5.6% |
| 2020–24 | 1.2% | 6.9% | 6.6% | 5.4% |
| Change | −5.4 pts | −0.9 pts | −1.2 pts | −2.7 pts |
Unemployment in Islip Terrace has been low: just 1.2% of the labor force was out of work and looking, well below the national rate of 5.4%. Only six of the 488 New York cities with 5,000+ people have lower unemployment. Unemployment is down 5.4 points from 2006–10, mirroring the country.
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).
Islip Terrace 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Islip Terrace | 3.16 | 42.2 | 7.0% | 10.5% | 5.4% | 1960 | $2,635 | 30.0% | 91.2% | 1.2% |
| North Great River | 3.28 | 45.6 | 3.8% | 12.6% | 3.5% | 1965 | $2,416 | 28.6% | 86.2% | 3.0% |
| East Islip | 2.95 | 44.7 | 8.3% | 15.2% | 4.4% | 1962 | $2,734 | 44.6% | 93.6% | 1.6% |
| Islip | 2.84 | 45.7 | 6.4% | 17.1% | 6.4% | 1963 | $2,466 | 36.2% | 89.7% | 5.7% |
| Great River | 2.60 | 52.0 | 1.3% | 3.8% | 9.0% | 1962 | $2,740 | 61.6% | 95.2% | 4.5% |
| Central Islip | 4.58 | 35.3 | 18.5% | 20.1% | 9.8% | 1969 | $2,314 | 18.6% | 73.6% | 5.9% |
| Oakdale | 2.56 | 47.7 | 5.1% | 15.7% | 10.2% | 1969 | $2,394 | 45.4% | 96.4% | 4.0% |
| Brentwood | 2.93 | 41.7 | 7.7% | 17.8% | 11.7% | 1970 | $2,255 | 40.2% | 0.0% | 4.7% |
| Islandia | 2.79 | 42.1 | 7.2% | 4.0% | 8.3% | 1972 | $2,046 | 32.4% | 87.6% | 5.5% |
| Bay Shore | 3.33 | 37.7 | 15.0% | 30.2% | 6.4% | 1962 | $2,173 | 30.5% | 85.5% | 6.2% |
| North Bay Shore | 4.74 | 34.8 | 19.6% | 16.2% | 7.4% | 1971 | $1,761 | 13.8% | 70.2% | 4.1% |
All figures 2020–24.
Cities with similar populations: Carneys Point, NJ · Catasauqua, PA · Castleton On Hudson, NY · Castaner, PR · Cassopolis, MI · Carver, MN · Carthage, NY · Carrollton, KY · Carrizo Springs, TX · Carolina Beach, NC
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 Islip Terrace. 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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