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/LAKE-HIAWATHA

Lake Hiawatha ZIP code, New Jersey

The ZIP code for Lake Hiawatha, NJ is 07034, and its area codes are 973 and 862.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
11,018
Area codes
973, 862

NANPA lists no telephone rate centre for Lake Hiawatha itself, so these are the area codes of the nearest one, Boonton (3.9 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Lake Hiawatha uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Lake Hiawatha in numbers

About 11,018 people live in Lake Hiawatha, in 4,510 households. The median household income is $104,663 a year, about the same as the New Jersey median of $103,556 (US: $80,734). The median owner-occupied home is valued at $428,600 (6% below the New Jersey median), and median gross rent is $1,550 a month. The median age is 38.9; 51.7% of adults 25 and over hold a bachelor's degree or higher (43.6% across New Jersey); the average commute takes 25 minutes.

Population11,018Lake Hiawatha11,018
Households4,510Lake Hiawatha4,510
Median age38.9Lake Hiawatha38.9New Jersey40.1US 38.9
Median household income$104,663Lake Hiawatha$104,663New Jersey$103,556US $80,734
Median home value$428,600Lake Hiawatha$428,600New Jersey$454,400US $332,700
Median gross rent$1,550Lake Hiawatha$1,550New Jersey$1,720US $1,413
Bachelor's degree or higher51.7%Lake Hiawatha51.7%New Jersey43.6%US 35.7%
Mean commute25.0 minLake Hiawatha25.0 minNew Jersey30.5 minUS 26.4 min
Population density9,980 / sq miLake Hiawatha9,980 / sq mi

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

ZIP codes addressed as Lake Hiawatha

ZIP codes with the USPS city name Lake Hiawatha
ZIP City Type Population Median income Median home
07034 Lake Hiawatha , NJ Standard 11,018 $104,663 $428,600

Other ZIP codes overlapping Lake Hiawatha

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

ZIP codes overlapping Lake Hiawatha
ZIP City Type Population Median income Median home
07005 Boonton , NJ Standard 15,307 $132,629 $587,100

Map of Lake Hiawatha ZIP codes

The ZIP codes of Lake Hiawatha, 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 Lake Hiawatha

The nearest larger towns are Parsippany (21,345 people, 2.0 mi), Florham Park (13,564 people, 7.3 mi) and Morristown (20,453 people, 7.7 mi).

Towns near Lake Hiawatha
TownPopulationDistance
Parsippany 21,345 2.0 mi
Boonton 8,854 2.0 mi
Pine Brook 5,961 2.2 mi
Troy Hills 5,179 2.3 mi
Mountain Lakes 4,585 3.2 mi
Towaco 5,612 3.8 mi
Whippany 8,970 4.4 mi
Lincoln Park 10,957 5.0 mi
Roseland 6,268 5.6 mi
Morris Plains 6,315 5.6 mi
Cedar Knolls 4,882 5.8 mi
Caldwell 9,003 6.2 mi
North Caldwell 6,656 6.5 mi
Kinnelon 10,013 7.0 mi

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

Cite this page

zipcodes.pro. “Lake Hiawatha, NJ ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nj/lake-hiawatha

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