Princeton, NJ Area Codes
Princeton is served by area codes 609 and 640. It is in New Jersey, Mercer County. About 57,313 people live in its 5 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 609, 640 |
| State / province | New Jersey |
| County | Mercer County |
| Population | 57,313 |
| ZIP codes | 5 |
| Time zone | Eastern |
| Coordinates | 40.3390, -74.6691 |
What area code is Princeton in?
ZIP codes in the code footprint
08540, 08541, 08542, 08543, 08544
Nearby towns and their area codes
Plainsboro 609, 640Lawrence Township 609, 640Princeton Junction 609, 640Pennington 609Trenton 609, 640Monmouth Junction 732, 848Belle Mead 908Cranbury 609, 640
How to dial
Dial 609 + 7 digits for a number in Princeton, or +1 609 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.