In which county is ZIP code 18104 located?

ZIP 18104 is listed under Lehigh, PA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 18104: Allentown, PA

ZIP: 18104

County: Lehigh

Coordinates: 40.60180, -75.52250

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Explore detailed information for ZIP code 18104 in Allentown, PA. We include verified county details for Lehigh plus key geographic references used for mapping and logistics.

Primary City	Allentown
ZIP Code	18104
County	Lehigh
State	PA
Latitude / Longitude	40.60180, -75.52250
ZIP Type	Standard
Time Zone	Eastern Time (ET)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 18104 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 18104 is approximately 40.60180 (latitude) and -75.52250 (longitude). This location sits within Lehigh, contributing to regional planning across PA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 18104 for mail delivery and general location reference in Lehigh, PA.

This ZIP may extend beyond the city core into nearby communities within Lehigh.

Related ZIP Codes (Nearby)

Explore other postal codes near Allentown within PA.

Frequently Asked Questions

What is the primary city for ZIP code 18104?

The primary city for this ZIP code is Allentown, located in PA.

In which county is 18104 located?

ZIP code 18104 is situated within Lehigh, PA.

What are the coordinates for 18104?

The approximate center point is 40.60180 (Latitude) and -75.52250 (Longitude).

Is ZIP code 18104 active?

This page lists ZIP 18104 as Listed based on the latest refresh date shown above.

Does ZIP 18104 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08