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List of Zip Codes in Allentown, Pennsylvania

Outlined below is a zip code list for Allentown. Select a zip code you are interested in to find zip code data on demographics, family, housing, education, transportation, and real estate. See the Allentown Zip Code Map.

Zip Code 18101 Population: 3,773
Zip Code 18102 Population: 48,483
Zip Code 18103 Population: 48,021
Zip Code 18104 Population: 43,396
Zip Code 18106 Population: 6,829