ZIP Code 21140: Riva, MD
County: Anne Arundel County
Coordinates: 38.95040, -76.58540
ZIP Type: Standard
Time Zone: Eastern Time (ET)
Explore detailed information for ZIP code 21140 in Riva, MD. We include verified county details for Anne Arundel County plus key geographic references used for mapping and logistics.
| Primary City | Riva |
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| ZIP Code | 21140 |
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| County | Anne Arundel County |
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| State | MD |
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| Latitude / Longitude | 38.95040, -76.58540 |
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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 21140 (not an exact boundary).
Geographic & Administrative Context
Coordinates for 21140 are listed as 38.95040 / -76.58540, useful for GPS and service checks in and around Riva, MD.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 21140 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 Riva within MD.
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Frequently Asked Questions
What is the primary city for ZIP code 21140?
The primary city for this ZIP code is Riva, located in MD.
In which county is 21140 located?
ZIP code 21140 is situated within Anne Arundel County, MD.
What are the coordinates for 21140?
The approximate center point is 38.95040 (Latitude) and -76.58540 (Longitude).
Is ZIP code 21140 active?
This page lists ZIP 21140 as Listed based on the latest refresh date shown above.
Does ZIP 21140 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