| Place Name | Milltown |
| Place Type | Borough |
| ZIP Code(s) | 08850 |
| County | Middlesex County |
| Area Code(s) | 732,848 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 6,916 |
| Population Growth Rate (2010-19) | 2.09% |
| Majority Ethnicity | White 86.06% |
| Metro/Micro Stats Area | New York-Newark-Jersey City, NY-NJ-PA |
| US Congressional District(s) | New Jersey 12th |
| State Assembly Districts | 17 |
| State Senate Districts | 17 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 86.06% |
| African American | 2.8% |
| Hispanic | 0% |
| Asian | 4.19% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 6.95% |