Princeton, New Jersey

Princeton, New Jersey, in Mercer County, has ZIP codes 08540, 08541, 08542, 08543 and 08544 and area code 609, with 640 as an overlay.

ZIP codes: 08540, 08541, 08542, 08543 …
Area codes: 609, 640
County: Mercer County
State: New Jersey
Time zone: Eastern Time
Coordinates: 40.3397, -74.6648

ZIP codes in Princeton

ZIP code	Post office	County	Area codes
08540	Princeton	Mercer County	609, 640
08541^*	Princeton	Mercer County	609, 640
08542	Princeton	Mercer County	609, 640
08543^*	Princeton	Mercer County	609, 640
08544	Princeton	Mercer County	609, 640

* No mapped delivery area: P.O. boxes or a single organization. Area codes are those of the nearest ZIP code area.

Area codes for Princeton

Area code 609
In service since 1957. Shares its area with 640. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
Area code 640
In service since September 17, 2018. Shares its area with 609. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Princeton is in the Eastern Time zone.

Towns near Princeton

Plainsboro Center6.3 km (3.9 mi)
Kingston6.7 km (4.2 mi)
Rocky Hill7.1 km (4.4 mi)
Lawrenceville7.5 km (4.7 mi)
Plainsboro8.2 km (5.1 mi)
Princeton Junction8.2 km (5.1 mi)
Blawenburg8.2 km (5.1 mi)
Princeton Meadows8.5 km (5.3 mi)

Local numbers in area code 609

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