Callaway, MD

ZIP code 20620 is located in the town of Barstow, Maryland. This area is known for its rural charm and picturesque landscapes. With landmarks such as the Battle Creek Cypress Swamp, a nature preserve featuring a boardwalk trail through a wetland forest, and the Calvert Cliffs State Park, famous for its fossil-rich cliffs along the Chesapeake Bay, ZIP code 20620 offers residents and visitors a chance to explore the beauty of Southern Maryland.