Iselin, New Jersey Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Iselin, New Jersey is 19,151 as of the 2023 American Community Survey, making it the 62nd-largest city in New Jersey. The median household income is $112,615, the median home value is $394,200, and the median age is 38.4.
19,151
Population
6076
People / sq mi
$112,615
Median Income
$394,200
Median Home Value
Iselin covers 3.2 sq mi of land at 6076 people per square mile.
About Iselin, NJ
Iselin is a city in New Jersey with a population of 19,151. It ranks #62 among cities in New Jersey by population. The median age is 38.4, in line with the national median. The population is 51.0% male and 49.0% female.
The median household income in Iselin is $112,615, above the US median of $74,580. 5.0% of residents live below the federal poverty level. Home values sit at a median of $394,200, with monthly rent averaging $2,051. The homeownership rate of 66.2% is close to the national rate of 64.8%.
Educational attainment in Iselin reflects 55.0% of adults 25 and older holding a bachelor's degree or higher, above the national average of 34.3%. Roughly 17.8% of workers primarily work from home, noticeably above the national work-from-home rate of 14.2%. The average commute is 37.7 minutes each way.
Race & Ethnicity
| White | 24.6% |
| Black or African American | 8.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.5% |
| Two or More Races | 0.0% |
Economy & Income
$112,615
Median Household Income
$46,000
Per Capita Income
5.0%
Poverty Rate
2.0%
Unemployment Rate
Housing
$394,200
Median Home Value
$2,051
Median Rent
66.2%
Owner-Occupied
Education
88.9%
High School+
55.0%
Bachelor's+
Commute
14.4%
Drive Alone
53.4%
Public Transit
17.8%
Work From Home
37.7 min
Avg Commute
Community Profile
9.5%
Foreign Born
35.9%
Non-English at Home
1.8%
Veterans
9.0%
With Disability
94.5%
Health Insurance
96.0%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 22.1% |
| Finance, Insurance & Real Estate | 16.6% |
| Information | 11.1% |
| Manufacturing | 11.0% |
| Retail Trade | 9.7% |
| Education, Health Care & Social Services | 4.3% |
| Construction | 2.7% |
| Public Administration | 2.7% |
| Arts, Entertainment & Food Services | 2.6% |
| Transportation & Warehousing | 2.2% |
Largest cities in New Jersey
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Part of New Jersey
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City rankings
Frequently Asked Questions
Iselin, New Jersey has a population of 19,151 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 62nd-largest city in New Jersey.
The median household income in Iselin, New Jersey is $112,615, with 5.0% of residents living below the federal poverty level.
The median home value in Iselin, New Jersey is $394,200, with median monthly rent at $2,051 and a homeownership rate of 66.2%.
The median age in Iselin, New Jersey is 38.4 years. The population is 51.0% male and 49.0% female.
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Statewide data for New Jersey
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.