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/LEONARDO

Leonardo ZIP code, New Jersey

The ZIP code for Leonardo, NJ is 07737, and its area codes are 848 and 732.

USPS city name
1 ZIP code
Population
2,493
Area codes
848, 732

NANPA lists no telephone rate centre for Leonardo itself, so these are the area codes of the nearest one, Atlantic Highlands (1.5 miles). A town on an area-code boundary can differ from its neighbour.

Leonardo in numbers

About 2,493 people live in Leonardo, in 970 households. The median household income is $138,125 a year, 33% above the New Jersey median of $103,556 (US: $80,734). The median owner-occupied home is valued at $450,700 (about the same as the New Jersey median), and median gross rent is $1,694 a month. The median age is 36.9; 43.6% of adults 25 and over hold a bachelor's degree or higher (43.6% across New Jersey); the average commute takes 36 minutes.

Population2,493Leonardo2,493
Households970Leonardo970
Median age36.9Leonardo36.9New Jersey40.1US 38.9
Median household income$138,125Leonardo$138,125New Jersey$103,556US $80,734
Median home value$450,700Leonardo$450,700New Jersey$454,400US $332,700
Median gross rent$1,694Leonardo$1,694New Jersey$1,720US $1,413
Bachelor's degree or higher43.6%Leonardo43.6%New Jersey43.6%US 35.7%
Mean commute35.6 minLeonardo35.6 minNew Jersey30.5 minUS 26.4 min
Population density4,197 / sq miLeonardo4,197 / sq mi

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

ZIP codes addressed as Leonardo

ZIP codes with the USPS city name Leonardo
ZIP City Type Population Median income Median home
07737 Leonardo , NJ Standard 3,945 $139,318 $480,400

Map of Leonardo ZIP codes

07737

The ZIP codes of Leonardo, 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 Leonardo

The nearest larger towns are Atlantic Highlands (4,410 people, 2.2 mi), Port Monmouth (3,046 people, 2.4 mi) and North Middletown (3,035 people, 3.3 mi).

Towns near Leonardo
TownPopulationDistance
Atlantic Highlands 4,410 2.2 mi
Port Monmouth 3,046 2.4 mi
North Middletown 3,035 3.3 mi
Fairview 3,892 3.9 mi
Highlands 4,518 3.9 mi
Fair Haven 6,170 4.1 mi
Red Bank 12,862 4.9 mi
Rumson 7,241 4.9 mi
Keansburg 9,719 5.5 mi
Little Silver 6,105 5.9 mi
Union Beach 5,707 6.1 mi
Shrewsbury 4,179 6.4 mi
Lincroft 6,939 7.0 mi
Monmouth Beach 3,207 7.0 mi

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

Cite this page

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

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