In which county is ZIP code 21890 located?

ZIP 21890 is listed under Somerset, MD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 21890: Westover, MD

ZIP: 21890

County: Somerset

Coordinates: 38.09270, -75.88820

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Explore detailed information for ZIP code 21890 in Westover, MD. We include verified county details for Somerset plus key geographic references used for mapping and logistics.

Primary City	Westover
ZIP Code	21890
County	Somerset
State	MD
Latitude / Longitude	38.09270, -75.88820
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 21890 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 21890 are listed as 38.09270 / -75.88820, useful for GPS and service checks in and around Westover, MD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 21890 for mail delivery and general location reference in Somerset, MD.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Westover within MD.

Frequently Asked Questions

What is the primary city for ZIP code 21890?

The primary city for this ZIP code is Westover, located in MD.

In which county is 21890 located?

ZIP code 21890 is situated within Somerset, MD.

What are the coordinates for 21890?

The approximate center point is 38.09270 (Latitude) and -75.88820 (Longitude).

Is ZIP code 21890 active?

This page lists ZIP 21890 as Listed based on the latest refresh date shown above.

Does ZIP 21890 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