ZIP Code 21661: Rock Hall, MD
County: Kent
Coordinates: 39.13440, -76.23050
ZIP Type: Standard
Time Zone: Eastern Time (ET)
Explore detailed information for ZIP code 21661 in Rock Hall, MD. We include verified county details for Kent plus key geographic references used for mapping and logistics.
| Primary City | Rock Hall |
|---|
| ZIP Code | 21661 |
|---|
| County | Kent |
|---|
| State | MD |
|---|
| Latitude / Longitude | 39.13440, -76.23050 |
|---|
| ZIP Type | Standard |
|---|
| Time Zone | Eastern Time (ET) |
|---|
| Data Updated | 2026-01-08 |
|---|
Advertisement
Maps & Useful Links
Open in Maps:
Google Maps ·
OpenStreetMap
These links show the approximate center point for ZIP 21661 (not an exact boundary).
Geographic & Administrative Context
Coordinates for 21661 are listed as 39.13440 / -76.23050, useful for GPS and service checks in and around Rock Hall, MD.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 21661 for mail delivery and general location reference in
Kent,
MD.
Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Rock Hall.
Related ZIP Codes (Nearby)
Explore other postal codes near Rock Hall within MD.
Advertisement
Frequently Asked Questions
What is the primary city for ZIP code 21661?
The primary city for this ZIP code is Rock Hall, located in MD.
In which county is 21661 located?
ZIP code 21661 is situated within Kent, MD.
What are the coordinates for 21661?
The approximate center point is 39.13440 (Latitude) and -76.23050 (Longitude).
Is ZIP code 21661 active?
This page lists ZIP 21661 as Listed based on the latest refresh date shown above.
Does ZIP 21661 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
Advertisement
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