Zip Area Code

Caldwell, New Jersey

Caldwell, New Jersey, in Essex County, has ZIP codes 07006 and 07007 and area code 973, with 862 as an overlay.

ZIP codes
07006, 07007
Area codes
973, 862
Time zone
Eastern Time
Coordinates
40.8471, -74.2777

ZIP codes in Caldwell

ZIP codePost officeCountyArea codes
07006CaldwellEssex County973, 862
07007*CaldwellEssex County973, 862

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

Area codes for Caldwell

  • Area code 973

    In service since June 1, 1997. Shares its area with 862. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 862

    In service since December 29, 2001. Shares its area with 973. 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

Caldwell is in the Eastern Time zone.

Towns near Caldwell