In which county is ZIP code 18991 located?

ZIP 18991 is listed under Bucks County, PA.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 18991: Warminster, PA

ZIP: 18991

County: Bucks County

Coordinates: 40.32860, -75.10280

ZIP Type: Standard

Time Zone: Eastern Time (ET)

This profile provides an in-depth look at ZIP code 18991, serving Warminster in PA. It lies in Bucks County and supports delivery, planning, and address verification.

Primary City	Warminster
ZIP Code	18991
County	Bucks County
State	PA
Latitude / Longitude	40.32860, -75.10280
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 18991 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 18991 are listed as 40.32860 / -75.10280, useful for GPS and service checks in and around Warminster, PA.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 18991 for mail delivery and general location reference in Bucks County, PA.

Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Warminster.

Related ZIP Codes (Nearby)

Explore other postal codes near Warminster within PA.

Frequently Asked Questions

What is the primary city for ZIP code 18991?

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

In which county is 18991 located?

ZIP code 18991 is situated within Bucks County, PA.

What are the coordinates for 18991?

The approximate center point is 40.32860 (Latitude) and -75.10280 (Longitude).

Is ZIP code 18991 active?

This page lists ZIP 18991 as Listed based on the latest refresh date shown above.

Does ZIP 18991 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