| Place Name | Westfield (town) |
| Place Type | Town |
| GEOID | 3403979040 |
| County | Union County |
| Area Code(s) | 908 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 30,950 |
| Majority Ethnicity | White 80.25% |
| Metro/Micro Stats Area | New York-Newark-Jersey City, NY-NJ-PA |
| US Congressional District(s) | New Jersey 7th |
| State Assembly Districts | 21 |
| State Senate Districts | 21 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 80.25% |
| African American | 3.13% |
| Hispanic | 0.13% |
| Asian | 7.53% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 8.97% |