Mercer County, New Jersey

Mercer County, New Jersey, has 25 towns and 39 ZIP codes, in area codes 609 (overlay 640) and 732 (overlay 848).

Towns in Mercer County, A to Z

Town	ZIP codes	Area codes
Crosswicks	nearest08505, 08515, 08620	609, 640
Fieldsboro	nearest08505, 08554, 08611	609, 640
Groveville	nearest08515, 08620, 08691	609, 640
Hamilton Square	nearest08619, 08690, 08691	609, 640
Hightstown	08520	609, 640
Hopewell	08525	609, 640
Lawrence Township	08648	609, 640
Lawrenceville	nearest08534, 08638, 08648	609, 640
Mercerville	nearest08619, 08629, 08690	609, 640
Monroe Manor	nearest08520, 08535, 08555	732, 609, 848, 640
Pennington	08534	609, 640
Plainsboro Center	nearest08512, 08536, 08544	732, 848, 609, 640
Princeton	08540, 08541, 08542, 08543, 08544	609, 640
Princeton Junction	08550	609, 640
Renaissance at Monroe	nearest08520, 08535, 08555	732, 609, 848, 640
Robbinsville Center	nearest08561, 08690, 08691	609, 640
Stonebridge	nearest08512, 08520, 08831	732, 848, 609, 640
The College of New Jersey	nearest08618, 08628, 08638	609, 640
Titusville	08560	609, 640
Trenton	08601, 08602, 08603, 08604, 08605, 08606 and more	609, 640
Twin Rivers	nearest08520, 08535, 08555	732, 609, 848, 640
Washington Crossing	nearest08534, 08560, 08628	609, 640
White Horse	nearest08610, 08611, 08629	609, 640
Windsor	08561	609, 640
Yardville	nearest08610, 08620, 08690	609, 640

ZIP codes in Mercer County

08520Hightstown609, 640
08525Hopewell609, 640
08534Pennington609, 640
08540Princeton609, 640
08541Princeton609, 640
08542Princeton609, 640
08543Princeton609, 640
08544Princeton609, 640
08550Princeton Junction609, 640
08560Titusville609, 640
08561Windsor609, 640
08601Trenton609, 640
08602Trenton609, 640
08603Trenton609, 640
08604Trenton609, 640
08605Trenton609, 640
08606Trenton609, 640
08607Trenton609, 640
08608Trenton609, 640
08609Trenton609, 640
08610Trenton609, 640
08611Trenton609, 640
08618Trenton609, 640
08619Trenton609, 640
08620Trenton609, 640
08625Trenton609, 640
08628Trenton609, 640
08629Trenton609, 640
08638Trenton609, 640
08644Trenton609, 640
08645Trenton609, 640
08646Trenton609, 640
08647Trenton609, 640
08648Lawrence Township609, 640
08650Trenton609, 640
08666Trenton609, 640
08690Trenton609, 640
08691Trenton609, 640
08695Trenton609, 640

Area codes in Mercer County

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 code 732
In service since June 1, 1997. Shares its area with 848. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.
Area code 848
In service since December 29, 2001. Shares its area with 732. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Local numbers in area code 609

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