ZIP Code 20646: La Plata, MD
County: Charles
Coordinates: 38.52570, -76.98650
ZIP Type: Standard
Time Zone: Eastern Time (ET)
Explore detailed information for ZIP code 20646 in La Plata, MD. We include verified county details for Charles plus key geographic references used for mapping and logistics.
| Primary City | La Plata |
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| ZIP Code | 20646 |
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| County | Charles |
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| State | MD |
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| Latitude / Longitude | 38.52570, -76.98650 |
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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 20646 (not an exact boundary).
Geographic & Administrative Context
Coordinates for 20646 are listed as 38.52570 / -76.98650, useful for GPS and service checks in and around La Plata, MD.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 20646 for mail delivery and general location reference in
Charles,
MD.
Some addresses near La Plata may share this ZIP due to delivery routing and local service areas.
Related ZIP Codes (Nearby)
Explore other postal codes near La Plata within MD.
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Frequently Asked Questions
What is the primary city for ZIP code 20646?
The primary city for this ZIP code is La Plata, located in MD.
In which county is 20646 located?
ZIP code 20646 is situated within Charles, MD.
What are the coordinates for 20646?
The approximate center point is 38.52570 (Latitude) and -76.98650 (Longitude).
Is ZIP code 20646 active?
This page lists ZIP 20646 as Listed based on the latest refresh date shown above.
Does ZIP 20646 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