ZIP Code 21056: Gibson Island, MD
County: Anne Arundel County
Coordinates: 39.07510, -76.43240
ZIP Type: Standard
Time Zone: Eastern Time (ET)
Get a reliable snapshot of the Gibson Island, MD postal area 21056. This page summarizes county, coordinates, and local facts to help with services and location research.
| Primary City | Gibson Island |
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| ZIP Code | 21056 |
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| County | Anne Arundel County |
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| State | MD |
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| Latitude / Longitude | 39.07510, -76.43240 |
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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 21056 (not an exact boundary).
Geographic & Administrative Context
For mapping and verification, 21056 is commonly represented around 39.07510, -76.43240. These coordinates help identify the general area within Anne Arundel County, MD.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 21056 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 Gibson Island within MD.
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Frequently Asked Questions
What is the primary city for ZIP code 21056?
The primary city for this ZIP code is Gibson Island, located in MD.
In which county is 21056 located?
ZIP code 21056 is situated within Anne Arundel County, MD.
What are the coordinates for 21056?
The approximate center point is 39.07510 (Latitude) and -76.43240 (Longitude).
Is ZIP code 21056 active?
This page lists ZIP 21056 as Listed based on the latest refresh date shown above.
Does ZIP 21056 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