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ZIP code 18109
Allentown, PA · Lehigh County
About ZIP code 18109
- ZIP code 18109 is in Allentown, Lehigh County, Pennsylvania.
- About 18,446 people live in it, which is 863.5 people per square mile.
- It also reaches into Northampton County.
- Time zone: Eastern Standard Time.
- The middle of the ZIP code is at 40.637, -75.440.
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 18109 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.
Other ZIP codes in Allentown
- 18102 Allentown · 51,001 people
- 18103 Allentown · 48,746 people
- 18104 Allentown · 48,683 people
- 18106 Allentown · 6,226 people
- 18101 Allentown · 6,120 people
Nearby ZIP codes
- 18032 Catasauqua · 9,555 people
- 18018 Bethlehem · 32,965 people
- 18102 Allentown · 51,001 people
- 18101 Allentown · 6,120 people
- 18017 Bethlehem · 40,640 people
- 18052 Whitehall · 29,451 people
- 18103 Allentown · 48,746 people
- 18015 Bethlehem · 34,852 people
ZIP code list from SimpleMaps US Zips. Population is a US Census Bureau estimate. These are estimates, so check official sources before you decide.