21661 postal code
United StatesUpdated 2026-11-09Rock Hall, MarylandKent5 digits
Postal code details
1 placeCode
21661
Place
Rock Hall
Region
Maryland
County
Kent
Coordinates
39.1344, -76.2305
Accuracy
4 / 6
Country
United States
Location
OpenStreetMap ↗



39.1344, -76.2305© OpenStreetMap
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Places under this code
1| Place | Region | County | Coordinates |
|---|---|---|---|
| Rock Hall | Maryland | Kent | 39.1344, -76.2305 |
FAQ
Which city is 21661 in?
Rock Hall, Maryland, United States.
What are the coordinates of 21661?
39.1344, -76.2305
Is 21661 used in other countries?
Yes, 3 other countries.
Updated 2026-11-09. Attribution in Data & license.