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ZIP code 18101

Allentown, PA · Lehigh County

About ZIP code 18101

  • ZIP code 18101 is in Allentown, Lehigh County, Pennsylvania.
  • About 6,120 people live in it, which is 7,694.6 people per square mile.
  • Time zone: Eastern Standard Time.
  • The middle of the ZIP code is at 40.603, -75.470.

A ZIP code is a mail delivery area, not a town border, and one ZIP code can cover parts of several towns. To check a single address, use the US Postal Service lookup.

Allentown, PA

ZIP code 18101 is the post office name for Allentown, PA. 125,976 people live in Allentown. Typical household income is $55,494. A typical home costs $206,600.

  • Stronger than most towns on: Public transit, Walkability and Diversity & community.
  • Weaker than most towns on: Property taxes, Space and yard size and Jobs and income.

See all figures for Allentown

Other ZIP codes in Allentown

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ZIP code list from SimpleMaps US Zips. Population is a US Census Bureau estimate. These are estimates, so check official sources before you decide.