Population 19,577 · Census ACS 2020–24
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Population and households in Iselin
Household size in Iselin
| Period | Iselin | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.90 | 2.79 | 2.77 | 2.68 |
| 2010–14 | 3.01 | 2.85 | 2.82 | 2.73 |
| 2015–19 | 2.78 | 2.82 | 2.78 | 2.71 |
| 2020–24 | 3.05 | 2.79 | 2.76 | 2.65 |
| Change | +0.15 | −0.00 | −0.01 | −0.03 |
Iselin is a place of big households: 3.05 people per home on average, compared with 2.65 nationally. Numbers like that usually point to plenty of families with kids. Since 2006–10, household size has climbed from 2.90, even as the national average fell. Of the 415 New Jersey cities with 5,000+ people, only 41 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 Iselin
| Period | Iselin | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.2 | 38.0 | 39.1 | 37.7 |
| 2010–14 | 39.7 | 38.7 | 40.0 | 38.6 |
| 2015–19 | 45.1 | 39.8 | 41.0 | 39.6 |
| 2020–24 | 41.0 | 40.4 | 40.9 | 40.1 |
| Change | +2.7 | +2.4 | +1.8 | +2.3 |
At 41.0, the median age in Iselin is close to the national median of 40.1, so its age mix looks much like the country's. Since 2006–10, the median age has climbed from 38.2, in line with the national trend. The youngest areas are in the south, the oldest in the east.
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 Iselin
| Period | Iselin | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 10.1% | 13.1% | 11.6% | 12.3% |
| 2010–14 | 7.0% | 12.8% | 11.8% | 12.3% |
| 2015–19 | 8.4% | 11.4% | 10.8% | 11.6% |
| 2020–24 | 13.5% | 11.6% | 11.3% | 11.6% |
| Change | +3.4 pts | −1.5 pts | −0.4 pts | −0.6 pts |
Single parents head nearly one in seven households in Iselin (13.5%), a bit above the national share of 11.6%. Since 2006–10, the single-parent share has risen 3.4 points, even as the national share fell. Iselin has a higher 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 Iselin
Renters in Iselin
| Period | Iselin | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 36.6% | 47.1% | 33.1% | 33.3% |
| 2010–14 | 35.6% | 48.7% | 35.0% | 35.6% |
| 2015–19 | 28.2% | 48.8% | 36.1% | 36.0% |
| 2020–24 | 34.7% | 48.6% | 36.2% | 34.8% |
| Change | −1.9 pts | +1.5 pts | +3.1 pts | +1.5 pts |
Just over a third of households in Iselin rent their homes (34.7%), close to the national share of 34.8%. Renters make up a smaller share here than in the New York area as a whole (48.6%). Among homeowners, 40.0% have no mortgage at all, about the same as nationally. 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 Iselin
| Period | Iselin | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.4% | 9.1% | 9.1% | 11.4% |
| 2010–14 | 5.2% | 9.0% | 9.3% | 11.4% |
| 2015–19 | 5.2% | 9.1% | 9.3% | 11.1% |
| 2020–24 | 5.1% | 7.9% | 6.6% | 9.6% |
| Change | −0.2 pts | −1.2 pts | −2.5 pts | −1.8 pts |
Only 5.1% of homes in Iselin are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Vacancy is little changed from 2006–10, while 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 Iselin
| Period | Iselin | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 1969 | 1957 | 1965 | 1974 |
| 2010–14 | 1966 | 1958 | 1966 | 1975 |
| 2015–19 | 1965 | 1959 | 1967 | 1977 |
| 2020–24 | 1962 | 1962 | 1969 | 1980 |
| Change | −7 | +5 | +5 | +6 |
Iselin is a place of older homes: half were built before 1962, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. Newer construction is concentrated in the south, while the west 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 Iselin
| Period | Iselin | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,429 | $1,268 | $1,246 | $965 |
| 2010–14 | $1,539 | $1,377 | $1,324 | $1,040 |
| 2015–19 | $1,709 | $1,645 | $1,522 | $1,213 |
| 2020–24 | $2,357 | $2,060 | $1,896 | $1,571 |
| Change | +$928 | +$792 | +$651 | +$606 |
A typical rental in Iselin costs $2,357 a month with utilities, well above the national median of $1,571. Rent has climbed $928 a month since 2006–10, up 65%, roughly in step with the nation. Rent takes 30.6% of the typical renter's income, just over the 30% mark often used to define affordable rent. Renters on a budget will find the lowest rents in the southeast; the highest are in the northwest.
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 Iselin
Bachelor's degrees in Iselin
| Period | Iselin | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 39.3% | 35.0% | 34.7% | 28.4% |
| 2010–14 | 44.4% | 36.7% | 36.4% | 29.6% |
| 2015–19 | 45.1% | 39.9% | 39.6% | 32.1% |
| 2020–24 | 53.2% | 43.6% | 43.4% | 35.6% |
| Change | +13.9 pts | +8.6 pts | +8.6 pts | +7.2 pts |
College graduates are unusually common in Iselin: 53.2% 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 13.9 points from 2006–10, 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 Iselin
| Period | Iselin | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 87.5% | 83.7% | 87.0% | 84.9% |
| 2010–14 | 89.1% | 84.6% | 88.1% | 86.1% |
| 2015–19 | 90.6% | 86.2% | 89.5% | 87.7% |
| 2020–24 | 90.0% | 86.9% | 90.2% | 89.3% |
| Change | +2.4 pts | +3.3 pts | +3.2 pts | +4.3 pts |
About as many adults in Iselin have finished high school as nationally: 90.0%, against 89.3%. The rate is higher than in the New York area overall (86.9%). The share with a diploma is up 2.4 points from 2006–10, mirroring the country.
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 Iselin
| Period | Iselin | New York area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.5% | 7.9% | 7.9% | 8.1% |
| 2010–14 | 5.9% | 9.5% | 9.8% | 9.4% |
| 2015–19 | 4.9% | 5.7% | 5.6% | 5.6% |
| 2020–24 | 3.8% | 6.9% | 6.4% | 5.4% |
| Change | −2.8 pts | −0.9 pts | −1.5 pts | −2.7 pts |
Jobs have been easier to find in Iselin than nationally: unemployment was 3.8%, against 5.4%. Unemployment is down 2.8 points from 2006–10, 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).
Iselin 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| Iselin | 3.05 | 41.0 | 13.5% | 34.7% | 5.1% | 1962 | $2,357 | 53.2% | 90.0% | 3.8% |
| Colonia | 3.07 | 43.1 | 6.4% | 11.2% | 0.8% | 1960 | $2,048 | 49.4% | 91.8% | 4.6% |
| Woodbridge | 2.64 | 41.2 | 12.1% | 39.1% | 6.8% | 1964 | $1,904 | 36.9% | 92.4% | 5.3% |
| Avenel | 2.66 | 39.7 | 11.5% | 53.9% | 3.9% | 1978 | $1,822 | 36.6% | 87.5% | 4.9% |
| Fords | 2.85 | 42.3 | 7.1% | 33.5% | 2.7% | 1960 | $1,844 | 38.6% | 91.0% | 5.3% |
| Metuchen | 2.87 | 41.1 | 5.8% | 24.4% | 5.4% | 1962 | $2,175 | 61.0% | 95.2% | 5.9% |
| Sewaren | 2.78 | 41.8 | 7.7% | 25.7% | 3.2% | 1957 | $1,132 | 29.8% | 92.6% | 8.8% |
| Rahway | 2.61 | 41.0 | 15.4% | 47.7% | 5.9% | 1969 | $2,014 | 34.6% | 90.3% | 7.3% |
| Clark | 2.63 | 45.0 | 5.2% | 25.2% | 3.2% | 1962 | $1,641 | 47.2% | 94.4% | 4.2% |
| Edison | 2.88 | 41.0 | 6.9% | 39.4% | 4.1% | 1974 | $2,080 | 60.2% | 92.4% | 6.1% |
| Port Reading | 2.76 | 40.7 | 10.7% | 26.2% | 5.4% | 1967 | $1,945 | 34.1% | 95.4% | 2.7% |
All figures 2020–24.
Cities with similar populations: Deming, NM · Uvalde, TX · Vail, AZ · East Peoria, IL · East Patchogue, NY · East Liverpool, OH · East Greenwich, RI · West Richland, WA · Dripping Springs, TX · Dover, 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 Iselin. 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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