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/PA/ALLENTOWN

Allentown ZIP codes, Pennsylvania

Allentown, PA has 8 ZIP codes, from 18101 to 18195, and area codes 484, 610 and 835. The largest are 18103, 18104 and 18102.

USPS city name
8 ZIP codes
Overlapping the city
1 more
Population
125,976
Area codes
484, 610, 835

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

Allentown in numbers

About 125,976 people live in Allentown, in 46,374 households, the 3rd-largest of Pennsylvania's 1,944 census places. The median household income is $55,494 a year, 29% below the Pennsylvania median of $77,971 (US: $80,734). The median owner-occupied home is valued at $206,600 (19% below the Pennsylvania median), and median gross rent is $1,317 a month. The median age is 33.1; 19.1% of adults 25 and over hold a bachelor's degree or higher (35.2% across Pennsylvania); the average commute takes 25 minutes.

Population125,976Allentown125,976
Households46,374Allentown46,374
Median age33.1Allentown33.1Pennsylvania40.9US 38.9
Median household income$55,494Allentown$55,494Pennsylvania$77,971US $80,734
Median home value$206,600Allentown$206,600Pennsylvania$254,500US $332,700
Median gross rent$1,317Allentown$1,317Pennsylvania$1,209US $1,413
Bachelor's degree or higher19.1%Allentown19.1%Pennsylvania35.2%US 35.7%
Mean commute24.6 minAllentown24.6 minPennsylvania26.3 minUS 26.4 min
Population density7,172 / sq miAllentown7,172 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Allentown city. 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
18103 Allentown , PA Standard 48,746 $72,895 $272,700
18104 Allentown , PA Standard 48,683 $94,601 $336,400
18102 Allentown , PA Standard 51,001 $43,085 $163,400
18109 Allentown , PA Standard 18,446 $58,031 $198,800
18106 Allentown , PA Standard 6,226 $92,813 $412,200
18101 Allentown , PA Standard 6,120 $44,773 $171,300
18105 Allentown , PA No street area — — —
18195 Allentown , PA Standard 0 — —

Other ZIP codes overlapping Allentown

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

ZIP codes overlapping Allentown
ZIP City Type Population Median income Median home
18052 Whitehall , PA Standard 29,451 $75,665 $262,900

Map of Allentown ZIP codes

1810318104181021810918106181011810518195

The ZIP codes of Allentown, PA, 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 Philadelphia (1,579,706 people, 44 mi), Elizabeth, NJ (137,302 people, 68 mi) and Newark, NJ (310,178 people, 69 mi).

Towns near Allentown
TownPopulationDistance
Dorneyville 5,211 2.5 mi
Fullerton 16,724 2.6 mi
Emmaus 11,889 4.2 mi
Catasauqua 6,541 4.3 mi
Fountain Hill 4,834 4.4 mi
Wescosville 7,148 4.4 mi
Hokendauqua 3,145 4.6 mi
North Catasauqua 3,014 4.8 mi
Coplay 3,466 5.4 mi
Bethlehem 77,956 6.2 mi
Northampton 10,400 6.6 mi
Macungie 3,274 6.7 mi
Ancient Oaks 7,777 6.9 mi
Egypt 3,053 6.9 mi

More nearby: every ZIP code in Lehigh County · Pennsylvania ZIP codes

Cite this page

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

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