| Place Name | Iselin |
| Place Type | Census Designated Place |
| ZIP Code(s) | 08830 |
| County | Middlesex County |
| Area Code(s) | 732,848 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 19,115 |
| Population Growth Rate (2010-19) | 7.45% |
| Majority Ethnicity | Asian 52.32% |
| Metro/Micro Stats Area | New York-Newark-Jersey City, NY-NJ-PA |
| US Congressional District(s) | New Jersey 6th |
| State Assembly Districts | 19 |
| State Senate Districts | 19 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 31.67% |
| African American | 7.43% |
| Hispanic | 0.77% |
| Asian | 52.32% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 7.81% |