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/ISELIN

Iselin ZIP code, New Jersey

The ZIP code for Iselin, NJ is 08830, and its area codes are 732 and 848.

USPS city name
1 ZIP code
Overlapping the city
2 more
Population
19,551
Area codes
732, 848

NANPA lists no telephone rate centre for Iselin itself, so these are the area codes of the nearest one, Woodbridge (2.0 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Iselin uses the ZIP code above. 2 more ZIP codes cover part of the city but are addressed as somewhere else; they are listed separately below.

Iselin in numbers

About 19,551 people live in Iselin, in 6,512 households. The median household income is $109,500 a year, 6% above the New Jersey median of $103,556 (US: $80,734). The median owner-occupied home is valued at $426,800 (6% below the New Jersey median), and median gross rent is $2,113 a month. The median age is 38.5; 53.7% of adults 25 and over hold a bachelor's degree or higher (43.6% across New Jersey); the average commute takes 35 minutes.

Population19,551Iselin19,551
Households6,512Iselin6,512
Median age38.5Iselin38.5New Jersey40.1US 38.9
Median household income$109,500Iselin$109,500New Jersey$103,556US $80,734
Median home value$426,800Iselin$426,800New Jersey$454,400US $332,700
Median gross rent$2,113Iselin$2,113New Jersey$1,720US $1,413
Bachelor's degree or higher53.7%Iselin53.7%New Jersey43.6%US 35.7%
Mean commute34.5 minIselin34.5 minNew Jersey30.5 minUS 26.4 min
Population density6,203 / sq miIselin6,203 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Iselin CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Iselin

ZIP codes with the USPS city name Iselin
ZIP City Type Population Median income Median home
08830 Iselin , NJ Standard 19,551 $109,500 $426,800

Other ZIP codes overlapping Iselin

These ZIP codes cover part of Iselin but are addressed as somewhere else.

ZIP codes overlapping Iselin
ZIP City Type Population Median income Median home
07067 Colonia , NJ Standard 18,587 $122,713 $493,100
07095 Woodbridge , NJ Standard 20,756 $104,926 $390,000

Map of Iselin ZIP codes

08830

The ZIP codes of Iselin, 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 Iselin

The nearest larger towns are Woodbridge (20,756 people, 2.0 mi), Rahway (30,109 people, 3.2 mi) and Perth Amboy (55,855 people, 4.2 mi).

Towns near Iselin
TownPopulationDistance
Menlo Park Terrace 3,062 1.2 mi
Colonia 18,587 1.4 mi
Woodbridge 20,756 2.0 mi
Fords 12,771 2.4 mi
Avenel 17,121 2.5 mi
Metuchen 15,144 3.1 mi
Hopelawn 3,496 3.1 mi
Rahway 30,109 3.2 mi
Sewaren 3,248 3.5 mi
Port Reading 3,511 3.8 mi
Perth Amboy 55,855 4.2 mi
Carteret 25,496 4.8 mi
South Plainfield 24,473 5.2 mi
Garwood 4,885 5.6 mi

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

Cite this page

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

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