New Jersey Area Codes
| State: | New Jersey (NJ) |
| Area Codes: | 10 |
| Timezone: | Eastern (EDT) |
| Current Time: | 3:49 AM |
About New Jersey Area Codes
New Jersey (NJ) uses 10 telephone area codes to serve its residents and businesses. With an estimated population of 5,549,930, New Jersey is one of the moderately coded states in the North American Numbering Plan (NANP). The state is primarily in the Eastern Time Zone (EDT). The current local time in New Jersey is 3:49 AM.
The largest cities in New Jersey include Trenton (pop. 290,716), Newark (pop. 282,011), Jersey City (pop. 262,075), Atlantic City (pop. 237,054) and Paterson (pop. 145,233) . New Jersey has 21 counties spread across its territory. Each area code in NJ covers a geographic region of the state, with some areas using overlay codes that share the same geographic territory as an existing area code.
When calling a New Jersey phone number from outside the area code, you must dial the full 10-digit number: the 3-digit area code followed by the 7-digit local number. Many parts of New Jersey now require 10-digit dialing even for local calls due to overlay area codes and the nationwide 988 Suicide & Crisis Lifeline implementation.
All New Jersey Area Codes
The table below lists every active area code in New Jersey, along with the major city served and other cities covered by each code.
| Area Code | Major City | Other Cities |
|---|---|---|
| 201 | Newark | Jersey City, Union City, Bayonne, New Brunswick, Hackensack, Kearny, Fort Lee, Fair Lawn and more |
| 551 | Newark | Jersey City, New Brunswick, Hackensack, Little Ferry, Wayne, Rochelle Park, Weehawken, Parsippany and more |
| 609 | Trenton | Jersey City, Atlantic City, Camden, Princeton, Pleasantville, Hammonton, Mercerville, Hamilton Square and more |
| 640 | Camden | Pleasantville, Laurel Springs, Oddball Codes, Pleasantville -atlan |
| 732 | Newark | Jersey City, Camden, New Brunswick, Perth Amboy, Sayreville, Linden, Long Branch, Rahway and more |
| 848 | Newark | Jersey City, New Brunswick, Hackensack, Secaucus, Metuchen, Little Ferry, Wayne, Rochelle Park and more |
| 856 | Newark | Jersey City, Vineland, Camden, Bridgeton, Princeton, Glassboro, Pleasantville, Collingswood and more |
| 862 | Newark | Jersey City, New Brunswick, Hackensack, Secaucus, Morristown, Little Ferry, Wayne, Rochelle Park and more |
| 908 | Newark | Jersey City, Elizabeth, New Brunswick, Plainfield, Hackensack, Linden, Westfield, Summit and more |
| 973 | Newark | Jersey City, Paterson, Clifton, Passaic, East Orange, New Brunswick, Hackensack, Summit and more |
Largest Cities in New Jersey
These are the largest cities in New Jersey by population, along with their primary area codes and counties.
| City | Population | County |
|---|---|---|
| Trenton | 290,716 | Mercer County |
| Newark | 282,011 | Essex County |
| Jersey City | 262,075 | Hudson County |
| Atlantic City | 237,054 | Atlantic County |
| Paterson | 145,233 | Passaic County |
| Elizabeth | 129,216 | Union County |
| Vineland | 93,239 | Cumberland County |
| Clifton | 85,052 | Passaic County |
| Camden | 73,562 | Camden County |
| Passaic | 69,703 | Passaic County |
Frequently Asked Questions
New Jersey is primarily in the Eastern Time Zone (EDT).
The current local time is 3:49 AM.
The area code covering the most cities in New Jersey is 973, which serves Newark and 60+ other communities.
Yes, most areas in New Jersey now require 10-digit dialing (area code + 7-digit number) for all local calls. This requirement was implemented across the United States starting in October 2021 to support the 988 Suicide & Crisis Lifeline. Even if you are calling within the same area code, you need to dial all 10 digits.
To call a New Jersey number from within the United States, dial the area code followed by the 7-digit phone number (e.g., 201-XXX-XXXX). From outside the US, dial your country's exit code, then 1 (the US country code), then the full 10-digit number.
New Jersey has 21 counties.
The state's total estimated population is 5,549,930, spread across these counties and served by 10 area codes.
Trenton is served by area code
201.
New Jersey has 10 area codes in total — see the complete list above.
