Westfield, NJ ZIP Codes
Westfield, New Jersey has 2 ZIP codes: for street addresses and for PO boxes.
Mail addressed to Westfield covers nearby places too.
Where the 07090 ZIP code reaches
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07091 has no area on the map: it is a PO box or single-organization ZIP code. Dashed line: Westfield town limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
Check an address in Westfield
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Westfield PO box and business ZIP codes
| ZIP | Type and post office or station |
|---|---|
| 07090 | street delivery Westfield |
| 07091 | PO boxes at the Westfield post office Westfield |
Westfield ZIP code questions
What is the main ZIP code for Westfield?
07090, the ZIP code of the main Westfield post office at 153 Central Ave.
Which Westfield ZIP codes are for PO boxes only?
07091. Mail to it goes to boxes at the post office, not to street addresses.
What county is Westfield in?
Union County.
ZIP codes for towns near Westfield
More towns near Westfield: Elizabeth, Livingston Township, Piscataway Township, City of Orange Township, Perth Amboy, West Orange Township, Edison Township, Newark, East Orange.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections