Plainsboro, NJ Area Codes
Plainsboro is served by area codes 609 and 640. It is in New Jersey, Middlesex County. About 20,817 people live in its 1 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 609, 640 |
| State / province | New Jersey |
| County | Middlesex County |
| Population | 20,817 |
| ZIP codes | 1 |
| Time zone | Eastern |
| Coordinates | 40.3331, -74.5866 |
What area code is Plainsboro in?
ZIP codes in the code footprint
Nearby towns and their area codes
Cranbury 609, 640Princeton Junction 609, 640Princeton 609, 640Monmouth Junction 732, 848Hightstown 609, 640Kendall Park 732, 848Franklin Park 732, 848Lawrence Township 609, 640
How to dial
Dial 609 + 7 digits for a number in Plainsboro, or +1 609 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.