ZIP Code 21090: Linthicum Heights, MD
County: Anne Arundel County
Coordinates: 39.20920, -76.66810
ZIP Type: Standard
Time Zone: Eastern Time (ET)
This profile provides an in-depth look at ZIP code 21090, serving Linthicum Heights in MD. It lies in Anne Arundel County and supports delivery, planning, and address verification.
| Primary City | Linthicum Heights |
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| ZIP Code | 21090 |
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| County | Anne Arundel County |
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| State | MD |
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| Latitude / Longitude | 39.20920, -76.66810 |
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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 21090 (not an exact boundary).
Geographic & Administrative Context
Coordinates for 21090 are listed as 39.20920 / -76.66810, useful for GPS and service checks in and around Linthicum Heights, MD.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 21090 for mail delivery and general location reference in
Anne Arundel County,
MD.
This ZIP may extend beyond the city core into nearby communities within Anne Arundel County.
Related ZIP Codes (Nearby)
Explore other postal codes near Linthicum Heights within MD.
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Frequently Asked Questions
What is the primary city for ZIP code 21090?
The primary city for this ZIP code is Linthicum Heights, located in MD.
In which county is 21090 located?
ZIP code 21090 is situated within Anne Arundel County, MD.
What are the coordinates for 21090?
The approximate center point is 39.20920 (Latitude) and -76.66810 (Longitude).
Is ZIP code 21090 active?
This page lists ZIP 21090 as Listed based on the latest refresh date shown above.
Does ZIP 21090 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