Franklin Township, NJ ZIP Codes
Franklin Township, New Jersey has 4 ZIP codes: 4 for street addresses (, , and ).
Your street decides which one you use.
Which Franklin 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?
Franklin Township ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
Dashed line: Franklin Township township limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and county subdivision limits (2024).
All Franklin Township ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 08528 | street delivery; mail may be addressed to Kingston Kingston |
| 08540 | street delivery; mail may be addressed to Princeton Princeton |
| 08823 | street delivery; mail may be addressed to Franklin Park Kendall Park |
| 08873 | street delivery; mail may be addressed to Somerset Kilmer Sorting and Delivery Center |
Why your mail may say Franklin Township when you live outside it
Franklin Township ZIP codes also cover Princeton, Six Mile Run and Franklin Center, so a letter addressed to Franklin Township can go to a home outside the township limits.
A ZIP code does not set your city, school district or tax. Somerset County property records show which city you are in.
Franklin Township ZIP code questions
What is the main ZIP code for Franklin Township?
08528, the ZIP code of the main Kingston post office at 4599 Route 27.
What county is Franklin Township in?
Somerset County.
ZIP codes for towns near Franklin Township
More towns near Franklin Township: Bridgewater Township, Princeton, Edison Township, Sayreville, Plainfield, Monroe Township, West Windsor Township, Old Bridge Township, Woodbridge 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