18103 postal code
United StatesUpdated 2026-11-09Allentown, PennsylvaniaLehigh5 digits
Postal code details
1 placeCode
18103
Place
Allentown
Region
Pennsylvania
County
Lehigh
Coordinates
40.5891, -75.4645
Accuracy
4 / 6
Country
United States
Location
OpenStreetMap ↗
40.5891, -75.4645© OpenStreetMap
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Places under this code
1| Place | Region | County | Coordinates |
|---|---|---|---|
| Allentown | Pennsylvania | Lehigh | 40.5891, -75.4645 |
FAQ
Which city is 18103 in?
Allentown, Pennsylvania, United States.
What are the coordinates of 18103?
40.5891, -75.4645
Is 18103 used in other countries?
Yes, 3 other countries.
Updated 2026-11-09. Attribution in Data & license.