21723 postal code
United StatesUpdated 2026-11-09Cooksville, MarylandHoward5 digits
Postal code details
1 placeCode
21723
Place
Cooksville
Region
Maryland
County
Howard
Coordinates
39.3211, -77.0051
Accuracy
4 / 6
Country
United States
Location
OpenStreetMap ↗



39.3211, -77.0051© OpenStreetMap
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Places under this code
1| Place | Region | County | Coordinates |
|---|---|---|---|
| Cooksville | Maryland | Howard | 39.3211, -77.0051 |
Same code in other countries
2| Country | Place | Region |
|---|---|---|
| DE Germany | Hollern-Twielenfleth | Lower Saxony |
| MX Mexico | Benito Juárez | Baja California |
FAQ
Which city is 21723 in?
Cooksville, Maryland, United States.
What are the coordinates of 21723?
39.3211, -77.0051
Is 21723 used in other countries?
Yes, 2 other countries.
Updated 2026-11-09. Attribution in Data & license.