Trenton, New Jersey Area Code

Trenton, NJ Area Codes are


Trenton, NJ is officially utilizing two area codes which are area codes 609 and 640.

In addition to Trenton, NJ area code information read more details about area code 609, area code 640 and New Jersey area codes.

Trenton, NJ is located in Mercer County and observes the Eastern Time Zone. View our Times by Area Code tool.

New Jersey Area Code Map