In which county is ZIP code 18421 located?

ZIP 18421 is listed under Susquehanna, PA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 18421: Forest City, PA

ZIP: 18421

County: Susquehanna

Coordinates: 41.65150, -75.46660

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Explore detailed information for ZIP code 18421 in Forest City, PA. We include verified county details for Susquehanna plus key geographic references used for mapping and logistics.

Primary City	Forest City
ZIP Code	18421
County	Susquehanna
State	PA
Latitude / Longitude	41.65150, -75.46660
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 18421 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 18421 is commonly represented around 41.65150, -75.46660. These coordinates help identify the general area within Susquehanna, PA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 18421 for mail delivery and general location reference in Susquehanna, PA.

Some addresses near Forest City may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Forest City within PA.

Frequently Asked Questions

What is the primary city for ZIP code 18421?

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

In which county is 18421 located?

ZIP code 18421 is situated within Susquehanna, PA.

What are the coordinates for 18421?

The approximate center point is 41.65150 (Latitude) and -75.46660 (Longitude).

Is ZIP code 18421 active?

This page lists ZIP 18421 as Listed based on the latest refresh date shown above.

Does ZIP 18421 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