Iselin is a city located in Middlesex County New Jersey. Iselin has a 2024 population of 19,666. Iselin is currently growing at a rate of 3.03% annually and its population has increased by 13.31% since the most recent census, which recorded a population of 17,356 in 2020.
The average household income in Iselin is $135,332 with a poverty rate of 5.44%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Iselin is 40.4 years, 40.1 years for males, and 40.9 years for females.
According to the most recent ACS, the racial composition of Iselin was:
Asian
White
Black or African American
Two or more races
Other race
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 6,444 | 2.87 | 68.7 | 31.3 |
| Married | 4,222 | 3.29 | 68.4 | 31.6 |
| Non Family | 1,150 | 1.27 | 64.3 | 35.7 |
| Female | 732 | 2.71 | 82.7 | 17.3 |
| Male | 340 | 3.47 | 58.2 | 41.8 |
3.17
Average Family Size
2.87
Average Household Size
68.7%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among native american people with a rate of 100%.
The highest rate of bachelors degrees is among asian people with a rate of 74.4%.
All
Male
Female
$70,669
Average Earnings
$76,215
Average Male
$65,674
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
39.85% of Iselin residents speak only English, while 60.15% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 41.69% of the population.
rate
5.44%
Overall Poverty Rate
5.92%
Male Poverty Rate
4.96%
Female Poverty Rate
The race most likely to be in poverty in Iselin is Other, with 30.67% below the poverty level.
The race least likely to be in poverty in Iselin is Asian, with 3.1% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 0.47%. Among those working part-time, it was 7.72%, and for those that did not work, the poverty rate was 10.23%.
Married
Widowed
Divorced
Separated
NeverMarried
61.7%
Overall Marriage Rate
66.4%
Male Marriage Rate
57.3%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 45-54.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
10.57%
Veteran Poverty Rate
15.72%
Veteran Disability Rate
LaborForceParticipation
64.2%
Labor Force Participation
62.2%
Employment Rate
3%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
35.19%
Born in Iselin
49.01%
Native Born
50.99%
Foreign Born
23.65%
Non Citizen
27.35%
Naturalized
49.01% of Iselin residents were born in the United States, with 35.19% having been born in New Jersey. 23.65% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2024 | 19,666 | 578 | 3.03% |
| 2023 | 19,088 | 577 | 3.12% |
| 2022 | 18,511 | 827 | 4.68% |
| 2021 | 17,684 | 328 | 1.89% |
| 2020 | 17,356 | -819 | -4.51% |
| 2019 | 18,175 | -99 | -0.54% |
| 2018 | 18,274 | -1,148 | -5.91% |
| 2017 | 19,422 | 11 | 0.06% |
| 2016 | 19,411 | 265 | 1.38% |
| 2015 | 19,146 | 689 | 3.73% |
| 2014 | 18,457 | -542 | -2.85% |
| 2013 | 18,999 | -116 | -0.61% |
| 2012 | 19,115 | 352 | 1.88% |
| 2011 | 18,763 | 68 | 0.36% |
| 2010 | 18,695 | 0 | 0% |