ZIP Code 07091 – Westfield, NJ
Westfield, New Jersey · Union County · Eastern time
| ZIP code | 07091 |
|---|---|
| City | Westfield |
| State | New Jersey |
| County | Union County |
| Population | Not published (no Census ZIP area) |
| Time zone | Eastern · local time |
| ZIP type | PO box or unique ZIP (no Census area) |
| Center (lat, long) | 40.6657, -74.2997 |
Area codes in this area
These are the area codes that most often serve ZIP 07091 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Map
Nearby ZIP codes
About ZIP 07091
ZIP code 07091 is assigned to Westfield, New Jersey. It lies in Union County. It is a PO-box-only or single-address ZIP, so the Census Bureau does not publish an area for it; the location shown is approximate. The closest neighboring ZIP is 07061 (Plainfield), about 0 miles away.
Every address in 07091 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.
Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources