In which county is ZIP code 21029 located?

ZIP 21029 is listed under Howard, MD.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 21029: Clarksville, MD

ZIP: 21029

County: Howard

Coordinates: 39.21250, -76.95150

ZIP Type: Standard

Time Zone: Eastern Time (ET)

This profile provides an in-depth look at ZIP code 21029, serving Clarksville in MD. It lies in Howard and supports delivery, planning, and address verification.

Primary City	Clarksville
ZIP Code	21029
County	Howard
State	MD
Latitude / Longitude	39.21250, -76.95150
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 21029 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 21029 is approximately 39.21250 (latitude) and -76.95150 (longitude). This location sits within Howard, contributing to regional planning across MD.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 21029 for mail delivery and general location reference in Howard, MD.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Clarksville within MD.

Frequently Asked Questions

What is the primary city for ZIP code 21029?

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

In which county is 21029 located?

ZIP code 21029 is situated within Howard, MD.

What are the coordinates for 21029?

The approximate center point is 39.21250 (Latitude) and -76.95150 (Longitude).

Is ZIP code 21029 active?

This page lists ZIP 21029 as Listed based on the latest refresh date shown above.

Does ZIP 21029 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