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/MOUNTAIN-LAKES

Mountain Lakes ZIP code, New Jersey

The ZIP code for Mountain Lakes, NJ is 07046, and its area codes are 973 and 862.

USPS city name
1 ZIP code
Population
4,585
Area codes
973, 862

NANPA lists no telephone rate centre for Mountain Lakes itself, so these are the area codes of the nearest one, Boonton (3.2 miles). A town on an area-code boundary can differ from its neighbour.

Mountain Lakes in numbers

About 4,585 people live in Mountain Lakes, in 1,443 households. The median household income is $250,000+ a year (US: $80,734). The median owner-occupied home is valued at $917,000 (2.0 times the New Jersey median), and median gross rent is $3,500+ a month. The median age is 43.4; 85.9% of adults 25 and over hold a bachelor's degree or higher (43.6% across New Jersey); the average commute takes 34 minutes.

Population4,585Mountain Lakes4,585
Households1,443Mountain Lakes1,443
Median age43.4Mountain Lakes43.4New Jersey40.1US 38.9
Median household income$250,000+Mountain Lakes$250,000+New Jersey$103,556US $80,734
Median home value$917,000Mountain Lakes$917,000New Jersey$454,400US $332,700
Median gross rent$3,500+Mountain Lakes$3,500+New Jersey$1,720US $1,413
Bachelor's degree or higher85.9%Mountain Lakes85.9%New Jersey43.6%US 35.7%
Mean commute34.3 minMountain Lakes34.3 minNew Jersey30.5 minUS 26.4 min
Population density1,734 / sq miMountain Lakes1,734 / sq mi

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

ZIP codes addressed as Mountain Lakes

ZIP codes with the USPS city name Mountain Lakes
ZIP City Type Population Median income Median home
07046 Mountain Lakes , NJ Standard 4,585 $250,000+ $917,000

Map of Mountain Lakes ZIP codes

The ZIP codes of Mountain Lakes, 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 Mountain Lakes

The nearest larger towns are Boonton (8,854 people, 2.1 mi), Parsippany (21,345 people, 2.4 mi) and Lake Hiawatha (11,018 people, 3.2 mi).

Towns near Mountain Lakes
TownPopulationDistance
Boonton 8,854 2.1 mi
Parsippany 21,345 2.4 mi
Lake Hiawatha 11,018 3.2 mi
Troy Hills 5,179 3.7 mi
Rockaway 6,613 3.9 mi
Morris Plains 6,315 4.0 mi
White Meadow Lake 8,842 4.2 mi
Whippany 8,970 4.8 mi
Cedar Knolls 4,882 5.0 mi
Pine Brook 5,961 5.3 mi
Towaco 5,612 5.8 mi
Mount Hope 3,120 6.0 mi
Dover 18,563 6.1 mi
Morristown 20,453 6.8 mi

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

Cite this page

zipcodes.pro. “Mountain Lakes, NJ ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nj/mountain-lakes

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