Montclair Township, NJ ZIP Codes
Montclair Township, New Jersey has 2 ZIP codes: 2 for street addresses ( and ).
Your street decides which one you use.
Which Montclair Township ZIP code is my address in?
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?
Montclair Township ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
Dashed line: Montclair Township township limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and county subdivision limits (2024).
All Montclair Township ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 07042 | street delivery Montclair |
| 07043 | street delivery Montclair |
Why your mail may say Montclair Township when you live outside it
Montclair Township ZIP codes also cover Upper Montclair, so a letter addressed to Montclair Township can go to a home outside the township limits.
A ZIP code does not set your city, school district or tax. Essex County property records show which city you are in.
Montclair Township ZIP code questions
What is the main ZIP code for Montclair Township?
07042, the ZIP code of the main Montclair post office at 125 Glenridge Ave.
What county is Montclair Township in?
Essex County.
ZIP codes for towns near Montclair Township
More towns near Montclair Township: City of Orange Township, Passaic, Garfield, Paterson, Livingston Township, Kearny, Irvington Township, Newark, Wayne Township.
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