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/HACKETTSTOWN

Hackettstown ZIP code, New Jersey

The ZIP code for Hackettstown, NJ is 07840, and its area code is 908.

USPS city name
1 ZIP code
Population
10,140
Area code
908

Hackettstown in numbers

About 10,140 people live in Hackettstown, in 3,841 households. The median household income is $93,083 a year, 10% below the New Jersey median of $103,556 (US: $80,734). The median owner-occupied home is valued at $361,600 (20% below the New Jersey median), and median gross rent is $1,469 a month. The median age is 37.4; 37.5% of adults 25 and over hold a bachelor's degree or higher (43.6% across New Jersey); the average commute takes 31 minutes.

Population10,140Hackettstown10,140
Households3,841Hackettstown3,841
Median age37.4Hackettstown37.4New Jersey40.1US 38.9
Median household income$93,083Hackettstown$93,083New Jersey$103,556US $80,734
Median home value$361,600Hackettstown$361,600New Jersey$454,400US $332,700
Median gross rent$1,469Hackettstown$1,469New Jersey$1,720US $1,413
Bachelor's degree or higher37.5%Hackettstown37.5%New Jersey43.6%US 35.7%
Mean commute30.6 minHackettstown30.6 minNew Jersey30.5 minUS 26.4 min
Population density2,807 / sq miHackettstown2,807 / sq mi

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

ZIP codes addressed as Hackettstown

ZIP codes with the USPS city name Hackettstown
ZIP City Type Population Median income Median home
07840 Hackettstown , NJ Standard 32,105 $105,866 $396,100

Map of Hackettstown ZIP codes

07840

The ZIP codes of Hackettstown, 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 Hackettstown

The nearest larger towns are Budd Lake (10,650 people, 4.8 mi), Hopatcong (14,565 people, 11 mi) and Lake Hopatcong (10,259 people, 13 mi).

Towns near Hackettstown
TownPopulationDistance
Beattystown 4,917 2.8 mi
Panther Valley 4,553 4.0 mi
Budd Lake 10,650 4.8 mi
Flanders 8,809 6.0 mi
Netcong 3,659 7.2 mi
Stanhope 3,552 7.6 mi
Ledgewood 5,377 8.4 mi
Succasunna 9,799 8.8 mi
Landing 4,737 9.3 mi
Washington 7,334 10.6 mi
Mount Arlington 5,935 10.7 mi
Hopatcong 14,565 10.9 mi
Peapack and Gladstone 2,571 13.1 mi
Belvidere 2,538 13.1 mi

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

Cite this page

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

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