Trenton, NJ ZIP Codes, Area Codes and Address Format

City guides  |  July 23, 2026  |  2 min read

Looking up ZIP codes or writing an address in Trenton, New Jersey? Below is a practical reference built from postal data for the city.

State

New Jersey (NJ)

County

Mercer County

Standard ZIP codes

11

Time zone

Eastern

Trenton ZIP codes

These are the standard delivery ZIP codes for Trenton. The city has 25 ZIP codes in total when PO Box and unique codes are included.

• 08608
• 08609
• 08610
• 08611
• 08618
• 08619
• 08620
• 08628
• 08629
• 08638
• 08690

Area codes in Trenton

Trenton phone numbers use 609 and 640. With more than one code in use, residents on the same street can have different area codes.

Sample Trenton addresses

The street lines are invented; the city, state and ZIP codes are real. Use them for form testing, mockups and training materials, never for real orders.

How to write an address in Trenton

• End the address with TRENTON, NJ and the five-digit ZIP code.
• Put apartment or suite numbers at the end of the street line.
• Use USPS abbreviations such as ST, AVE and BLVD.
• Match the ZIP code to the street. Trenton has 11 codes, so the city name alone is not enough.

More New Jersey cities

Toms River, Brick, Plainfield, East Orange, Jersey City, or see all New Jersey cities.