East Windsor Township, NJ ZIP Code
East Windsor Township, New Jersey has one ZIP code: .
Mail addressed to East Windsor Township covers nearby places too.
Where the 08520 ZIP code reaches
Tap or point to an area to see its ZIP code.Full-size map
Dashed line: East Windsor Township township limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and county subdivision limits (2024).
Check an address in East Windsor Township
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?
ZIP codes from nearby towns that reach into East Windsor Township
- 08512, mailing town Cranbury, covers 9 percent of East Windsor Township
Why your mail may say East Windsor Township when you live outside it
East Windsor Township ZIP codes also cover Twin Rivers and Hightstown, so a letter addressed to East Windsor Township can go to a home outside the township limits.
The reverse happens too: parts of East Windsor Township use 08512, which mails under a neighboring town's name.
A ZIP code does not set your city, school district or tax. Mercer County property records show which city you are in.
East Windsor Township ZIP code questions
What is the main ZIP code for East Windsor Township?
08520, the ZIP code of the main Hightstown post office at 150 Mercer St.
What county is East Windsor Township in?
Mercer County.
ZIP codes for towns near East Windsor Township
More towns near East Windsor Township: Lawrence Township, Trenton, Freehold Township, East Brunswick Township, North Brunswick Township, Ewing Township, Falls Township, Jackson Township, Franklin 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