ZIP Code 21156: Upper Falls, MD
County: Baltimore County
Coordinates: 39.43720, -76.39660
ZIP Type: Standard
Time Zone: Eastern Time (ET)
This profile provides an in-depth look at ZIP code 21156, serving Upper Falls in MD. It lies in Baltimore County and supports delivery, planning, and address verification.
| Primary City | Upper Falls |
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| ZIP Code | 21156 |
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| County | Baltimore County |
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| State | MD |
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| Latitude / Longitude | 39.43720, -76.39660 |
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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 21156 (not an exact boundary).
Geographic & Administrative Context
The geographic center of ZIP code 21156 is approximately 39.43720 (latitude) and -76.39660 (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 21156 for mail delivery and general location reference in
Baltimore County,
MD.
Some addresses near Upper Falls may share this ZIP due to delivery routing and local service areas.
Related ZIP Codes (Nearby)
Explore other postal codes near Upper Falls within MD.
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Frequently Asked Questions
What is the primary city for ZIP code 21156?
The primary city for this ZIP code is Upper Falls, located in MD.
In which county is 21156 located?
ZIP code 21156 is situated within Baltimore County, MD.
What are the coordinates for 21156?
The approximate center point is 39.43720 (Latitude) and -76.39660 (Longitude).
Is ZIP code 21156 active?
This page lists ZIP 21156 as Listed based on the latest refresh date shown above.
Does ZIP 21156 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