Allentown, PA ZIP Codes

ZIP code, county, time zone and coordinates of Allentown, Pennsylvania

The ZIP code of Allentown, PA is 18101. Allentown has 3 ZIP codes: 18101, 18102, 18103. It is in Lehigh County.

Mailing address format for Allentown

John Smith
123 Main St
ALLENTOWN PA 18101
USA

USPS prefers capital letters without punctuation. Check the exact ZIP+4 for a street address on the USPS website.

All ZIP codes in Allentown

ZIP codePopulationArea
18101—0.3 sq miMain
18102—3.0 sq mi
18103—17.2 sq mi

ZIP Code Tabulation Areas (ZCTA), U.S. Census Bureau. A ZCTA can cover parts of more than one town.

Where is Allentown? Location, county and time zone

State
Pennsylvania
County
Lehigh County
GPS coordinates
40.59365, -75.47839
Elevation
338 ft (103 m)
Time zone
America/New YorkEST · UTC-05:00
Population
125,845

Map of Allentown, PA 18101

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ZIP codes near Allentown

Allentown ZIP code: FAQ

What is the ZIP code for Allentown, PA?

The main ZIP code for Allentown, PA is 18101. All ZIP codes: 18101, 18102, 18103.

How many ZIP codes does Allentown have?

Allentown has 3 ZIP codes.

What county is Allentown, PA in?

Allentown is in Lehigh County, Pennsylvania.

What time zone is Allentown in?

Allentown is in the America/New York time zone (EST, UTC-05:00 right now).

What are the coordinates of Allentown?

Latitude 40.59365, longitude -75.47839.

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