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/ALLENTOWN

Allentown ZIP code, New Jersey

The ZIP code for Allentown, NJ is 08501, and its area codes are 609 and 640.

USPS city name
1 ZIP code
Population
1,702
Area codes
609, 640

Allentown in numbers

About 1,702 people live in Allentown, in 676 households. The median household income is $120,714 a year, 17% above the New Jersey median of $103,556 (US: $80,734). The median owner-occupied home is valued at $415,600 (9% below the New Jersey median), and median gross rent is $1,671 a month. The median age is 40.8; 53.2% of adults 25 and over hold a bachelor's degree or higher (43.6% across New Jersey); the average commute takes 30 minutes.

Population1,702Allentown1,702
Households676Allentown676
Median age40.8Allentown40.8New Jersey40.1US 38.9
Median household income$120,714Allentown$120,714New Jersey$103,556US $80,734
Median home value$415,600Allentown$415,600New Jersey$454,400US $332,700
Median gross rent$1,671Allentown$1,671New Jersey$1,720US $1,413
Bachelor's degree or higher53.2%Allentown53.2%New Jersey43.6%US 35.7%
Mean commute30.0 minAllentown30.0 minNew Jersey30.5 minUS 26.4 min
Population density2,856 / sq miAllentown2,856 / sq mi

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

ZIP codes addressed as Allentown

ZIP codes with the USPS city name Allentown
ZIP City Type Population Median income Median home
08501 Allentown , NJ Standard 6,364 $146,182 $588,800

Map of Allentown ZIP codes

08501

The ZIP codes of Allentown, 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 Allentown

The nearest larger towns are Groveville (3,100 people, 3.3 mi), Robbinsville Center (3,777 people, 3.6 mi) and Yardville (6,301 people, 3.9 mi).

Towns near Allentown
TownPopulationDistance
Groveville 3,100 3.3 mi
Robbinsville Center 3,777 3.6 mi
Yardville 6,301 3.9 mi
Hamilton Square 11,622 4.5 mi
White Horse 10,507 5.9 mi
Bordentown 4,026 6.5 mi
Mercerville 13,535 6.7 mi
Hightstown 5,920 7.1 mi
Twin Rivers 8,382 7.8 mi
Trenton 90,338 9.7 mi
Morrisville, PA 9,752 10.2 mi
McGuire AFB 4,400 10.4 mi
Plainsboro Center 2,773 10.6 mi
Roebling 3,452 10.8 mi

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

Cite this page

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

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