South Brunswick Township, NJ ZIP Codes
South Brunswick Township, New Jersey has 5 ZIP codes: 5 for street addresses (, , , and ).
Your street decides which one you use.
Which South Brunswick 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?
South Brunswick Township ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
Dashed line: South Brunswick Township township limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and county subdivision limits (2024).
All South Brunswick Township ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 08512 | street delivery; mail may be addressed to Cranbury Cranbury |
| 08810 | street delivery; mail may be addressed to Dayton Dayton |
| 08824 | street delivery; mail may be addressed to Kendall Park Kendall Park |
| 08831 | street delivery; mail may be addressed to Monroe Township Monroe Township |
| 08852 | street delivery; mail may be addressed to Monmouth Junction Monmouth Junction |
ZIP codes from nearby towns that reach into South Brunswick Township
- 08540, mailing town Princeton, covers 8 percent of South Brunswick Township
- 08902, mailing town North Brunswick, covers 5 percent of South Brunswick Township
Why your mail may say South Brunswick Township when you live outside it
South Brunswick Township ZIP codes also cover Monroe Township, Cranbury Township and Monmouth Junction, so a letter addressed to South Brunswick Township can go to a home outside the township limits.
The reverse happens too: parts of South Brunswick Township use 08540 and 08902, which mail under a neighboring town's name.
A ZIP code does not set your city, school district or tax. Middlesex County property records show which city you are in.
South Brunswick Township ZIP code questions
What is the main ZIP code for South Brunswick Township?
08512, the ZIP code of the main Cranbury post office at 65 N Main St.
What county is South Brunswick Township in?
Middlesex County.
ZIP codes for towns near South Brunswick Township
More towns near South Brunswick Township: West Windsor Township, East Windsor Township, Hillsborough Township, Old Bridge Township, Piscataway Township, Manalapan Township, Sayreville, Lawrence Township, Edison 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