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New Jersey Area Codes

Area Codes For All New Jersey Counties

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NJ County Area Codes

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There are many area codes in New Jersey and almost every county shares area codes as they overlap county borders. The most used number is area code 201.

New Jersey is currently using nine area codes with 3 area code overlay plans, often called overlay complexes.

Area code 201 was established in 1947 and covered all of New Jersey. But, due to a large growth in population NJ needed another area code. So, in 1957 area code 201 was split and 609 was established. This lasted until 1990 when 908 was established to help an overburdened numbering system.

Atlantic County Area Codes:

609, 865

Bergen County:

201, 551, 862, 973

Burlington County:

609, 856

Camden County:

609, 856

Cape May County:

609

Cumberland County:

609, 856

Essex County:

201, 551, 732, 862, 908, 973,

Gloucester County:

609, 856

Hudson County:

201, 551, 862, 908, 973

Hunterdon County:

609, 908

Mercer County:

201, 609, 732, 908

Middlesex County:

201, 609, 732, 848, 908, 973

Monmouth County:

609, 732, 848, 908, 973

Morris County:

201, 732, 862, 908, 973

Ocean County:

201, 609, 732, 848, 856, 908

Passaic County:

201, 862, 973

Salem County:

609, 856

Somerset County:

609, 732, 848, 908, 973

Sussex County:

201,862, 908, 973

Union County:

201, 732, 848, 908, 973

Warren County:

201, 908