Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/NJ/FAIRFIELD

Fairfield ZIP code, New Jersey

The ZIP code for Fairfield, NJ is 07004, and its area codes are 973, 862 and 201.

USPS city name
1 ZIP code
Population
7,824
Area codes
973, 862, 201

NANPA lists no telephone rate centre for Fairfield itself, so these are the area codes of the nearest one, Caldwell (2.4 miles). A town on an area-code boundary can differ from its neighbour.

Fairfield in numbers

About 7,824 people live in Fairfield, in 3,039 households. The median household income is $115,980 a year, 12% above the New Jersey median of $103,556 (US: $80,734). The median owner-occupied home is valued at $688,500 (52% above the New Jersey median).

Population7,824Fairfield7,824
Households3,039Fairfield3,039
Median household income$115,980Fairfield$115,980New Jersey$103,556US $80,734
Median home value$688,500Fairfield$688,500New Jersey$454,400US $332,700

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Fairfield. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Fairfield

ZIP codes with the USPS city name Fairfield
ZIP City Type Population Median income Median home
07004 Fairfield , NJ Standard 7,824 $115,980 $688,500

Map of Fairfield ZIP codes

The ZIP codes of Fairfield, NJ, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Fairfield

The nearest larger towns are Lincoln Park (10,957 people, 2.8 mi), Caldwell (9,003 people, 3.3 mi) and Lake Hiawatha (11,018 people, 4.1 mi).

Towns near Fairfield
TownPopulationDistance
Pine Brook 5,961 2.2 mi
North Caldwell 6,656 2.6 mi
Lincoln Park 10,957 2.8 mi
Singac 4,207 3.2 mi
Caldwell 9,003 3.3 mi
Towaco 5,612 3.7 mi
Lake Hiawatha 11,018 4.1 mi
Roseland 6,268 4.2 mi
Packanack Lake 6,321 4.6 mi
Totowa 10,959 4.7 mi
Great Notch 4,008 5.1 mi
Troy Hills 5,179 5.3 mi
Boonton 8,854 5.5 mi
Montclair State University 2,853 5.7 mi

More nearby: every ZIP code in Essex County · New Jersey ZIP codes

Cite this page

zipcodes.pro. “Fairfield, NJ ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nj/fairfield

Underlying data is public domain or openly licensed — sources, vintages and licences.