Great Mills, MD

ZIP code 20634 covers the small town of Dowell, Maryland. This area is home to important landmarks such as the Calvert Marine Museum, which showcases the region's maritime history, including exhibits on the Chesapeake Bay and its ecological significance. Dowell is also known for its proximity to Solomons Island, a popular waterfront destination with marinas, restaurants, and scenic views of the Patuxent River.