In which county is ZIP code 18351 located?

ZIP 18351 is listed under Northampton, PA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 18351: Portland, PA

ZIP: 18351

County: Northampton

Coordinates: 40.92140, -75.09700

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Portland, PA postal area 18351. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Portland
ZIP Code	18351
County	Northampton
State	PA
Latitude / Longitude	40.92140, -75.09700
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 18351 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 18351 is commonly represented around 40.92140, -75.09700. These coordinates help identify the general area within Northampton, PA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 18351 for mail delivery and general location reference in Northampton, PA.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Portland within PA.

Frequently Asked Questions

What is the primary city for ZIP code 18351?

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

In which county is 18351 located?

ZIP code 18351 is situated within Northampton, PA.

What are the coordinates for 18351?

The approximate center point is 40.92140 (Latitude) and -75.09700 (Longitude).

Is ZIP code 18351 active?

This page lists ZIP 18351 as Listed based on the latest refresh date shown above.

Does ZIP 18351 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