ZIP Code 08603
Trenton · Mercer, New Jersey
08603 is the ZIP code of Trenton in Mercer, New Jersey, United States.
- ZIP Code
- 08603
- County
- Mercer
- State
- New Jersey
- Country
- United States
Place with ZIP code 08603
| Place | County | Location |
|---|---|---|
| Trenton | Mercer | 40.281, -74.712 |
Near Philadelphia
The nearest major city is Philadelphia, about 53 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 08603?
Trenton.
Which county and state is 08603 in?
Mercer, New Jersey, United States.
What is the nearest major city to 08603?
Philadelphia, about 53 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.