Union County Area Codes

About Union County Area Codes

The county of Union County, located in New Jersey, is served by 4 telephone area code(s) in this dataset. These calling codes cover cities, suburbs, and unincorporated communities across the county.

Major phone area codes used in Union County include 732, 848, 862, 908. The county mainly follows the America/New_York time zone.

Cities and towns served by these area codes in Union County include Cranford, Elizabeth, Hillside, Linden, North Plainfield, Rahway, Roselle, Scotch Plains, Summit, Westfield.

List of Area Codes in Union County, New Jersey

The table below lists all telephone area codes used in Union County, New Jersey, along with their associated cities and time zones from this dataset.


S.N. Area Code Cities Time Zone(s)
1 732 North Plainfield, Rahway America/New_York
2 848 North Plainfield, Rahway America/New_York
3 862 Hillside America/New_York
4 908 Cranford, Elizabeth, Hillside, Linden, Roselle, Scotch Plains, Summit, Westfield America/New_York


Related Area Code Pages

Explore related area code resources on Burning Compass:

  • All area codes in New Jersey
  • Individual area code details are available from the table above.