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/ROCKY-HILL

Rocky Hill ZIP code, New Jersey

The ZIP code for Rocky Hill, NJ is 08553.

USPS city name
1 ZIP code
Population
819

Rocky Hill in numbers

About 819 people live in Rocky Hill, in 318 households. The median household income is $148,056 a year, 43% above the New Jersey median of $103,556 (US: $80,734). The median owner-occupied home is valued at $597,200 (31% above the New Jersey median), and median gross rent is $1,799 a month. The median age is 44.5; 71.1% of adults 25 and over hold a bachelor's degree or higher (43.6% across New Jersey); the average commute takes 23 minutes.

Population819Rocky Hill819
Households318Rocky Hill318
Median age44.5Rocky Hill44.5New Jersey40.1US 38.9
Median household income$148,056Rocky Hill$148,056New Jersey$103,556US $80,734
Median home value$597,200Rocky Hill$597,200New Jersey$454,400US $332,700
Median gross rent$1,799Rocky Hill$1,799New Jersey$1,720US $1,413
Bachelor's degree or higher71.1%Rocky Hill71.1%New Jersey43.6%US 35.7%
Mean commute22.6 minRocky Hill22.6 minNew Jersey30.5 minUS 26.4 min
Population density1,343 / sq miRocky Hill1,343 / sq mi

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

ZIP codes addressed as Rocky Hill

ZIP codes with the USPS city name Rocky Hill
ZIP City Type Population Median income Median home
08553 Rocky Hill , NJ Standard 819 $148,056 $597,200

Map of Rocky Hill ZIP codes

08553

The ZIP codes of Rocky Hill, 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 Rocky Hill

The nearest larger towns are Kingston (1,670 people, 1.9 mi), Ten Mile Run (2,492 people, 3.1 mi) and Princeton (30,756 people, 3.3 mi).

Towns near Rocky Hill
TownPopulationDistance
Princeton 30,756 3.3 mi
Heathcote 7,717 3.3 mi
Kendall Park 10,011 4.1 mi
Monmouth Junction 9,141 4.6 mi
Belle Mead 6,394 4.8 mi
Plainsboro Center 2,773 5.4 mi
Princeton Meadows 15,561 5.9 mi
Franklin Park 13,211 5.9 mi
Blackwells Mills 10,301 5.9 mi
Dayton 7,952 7.1 mi
Six Mile Run 2,882 7.3 mi
Hillsborough 22,585 7.5 mi
Lawrenceville 3,924 8.5 mi
Pennington 2,827 9.5 mi

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

Cite this page

zipcodes.pro. “Rocky Hill, NJ ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/nj/rocky-hill

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