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ZIP Codes in Allentown, PENNSYLVANIA

Find complete information about all ZIP codes in Allentown, Pennsylvania. Our interactive map shows the postal code boundaries and locations throughout the city.

Allentown Postal Codes

The postal system in Allentown is organized to efficiently serve both residential and commercial areas. Each ZIP code represents a specific delivery zone within the city limits.

Código Postal PENNSYLVANIA city ALLENTOWN - zip code Estados Unidos USA
ZIP Code (Zip Code) - Representación de área del código postal de los correos de los Estados Unidos.
Código Postal EEUU - PENNSYLVANIA - ALLENTOWN
City Name Zip Code Type Population
Allentown, PA PRIMARY 18101 STANDARD 2.150
Allentown, PA PRIMARY 18102 STANDARD 36.863
Allentown, PA PRIMARY 18103 STANDARD 38.997
Allentown, PA PRIMARY 18104 STANDARD 36.028
Allentown, PA PRIMARY 18105 PO BOX 1.045
Allentown, PA PRIMARY 18106 STANDARD 6.412
Allentown, PA PRIMARY 18109 STANDARD 13.756
Allentown, PA PRIMARY 18175 UNIQUE indefined
Allentown, PA PRIMARY 18195 STANDARD indefined
City Name Zip Code Type Population
Allentown, PA PRIMARY 18101 STANDARD 2.150
Allentown, PA PRIMARY 18102 STANDARD 36.863
Allentown, PA PRIMARY 18103 STANDARD 38.997
Allentown, PA PRIMARY 18104 STANDARD 36.028
Allentown, PA PRIMARY 18105 PO BOX 1.045
Allentown, PA PRIMARY 18106 STANDARD 6.412
Allentown, PA PRIMARY 18109 STANDARD 13.756
Allentown, PA PRIMARY 18175 UNIQUE indefined
Allentown, PA PRIMARY 18195 STANDARD indefined
Código Postal EEUU - PENNSYLVANIA - ALLENTOWN

Definitions of Status

  • PRIMARY: Refers to the main name of the city, typically its official designation. Although the city might have an ACCEPTABLE alternative name, the primary name remains the official one.
  • ACCEPTABLE: Indicates a suitable alternative city name. Commonly abbreviated city names are often listed as unacceptable because abbreviations are not considered an acceptable city name format.
  • IMPROPER/NOT ACCEPTABLE: Denotes that an inappropriate city name was entered or received based on the provided information.
  • UNIQUE: Assigned to a business, government agency, or entity with a significant mail volume. This designation depends on the average daily volume of letter-sized mail received, the availability of ZIP code numbers in the postal area, and a cost-benefit analysis by the postal service.