ZIP Code 21030: Cockeysville, MD
County: Baltimore County
Coordinates: 39.49190, -76.66770
ZIP Type: Standard
Time Zone: Eastern Time (ET)
This profile provides an in-depth look at ZIP code 21030, serving Cockeysville in MD. It lies in Baltimore County and supports delivery, planning, and address verification.
| Primary City | Cockeysville |
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| ZIP Code | 21030 |
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| County | Baltimore County |
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| State | MD |
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| Latitude / Longitude | 39.49190, -76.66770 |
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| ZIP Type | Standard |
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| Time Zone | Eastern Time (ET) |
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| Data Updated | 2026-01-08 |
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Maps & Useful Links
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These links show the approximate center point for ZIP 21030 (not an exact boundary).
Geographic & Administrative Context
The geographic center of ZIP code 21030 is approximately 39.49190 (latitude) and -76.66770 (longitude). This location sits within Baltimore County, contributing to regional planning across MD.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 21030 for mail delivery and general location reference in
Baltimore County,
MD.
This ZIP may extend beyond the city core into nearby communities within Baltimore County.
Related ZIP Codes (Nearby)
Explore other postal codes near Cockeysville within MD.
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Frequently Asked Questions
What is the primary city for ZIP code 21030?
The primary city for this ZIP code is Cockeysville, located in MD.
In which county is 21030 located?
ZIP code 21030 is situated within Baltimore County, MD.
What are the coordinates for 21030?
The approximate center point is 39.49190 (Latitude) and -76.66770 (Longitude).
Is ZIP code 21030 active?
This page lists ZIP 21030 as Listed based on the latest refresh date shown above.
Does ZIP 21030 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
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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