Ellicott City, MD

ZIP code 21042 belongs to Ellicott City, Maryland. This area is known for its historic Main Street filled with charming shops and restaurants. It is also home to the Patapsco Valley State Park, offering picturesque hiking trails and scenic overlooks of the Patapsco River. Additionally, residents and visitors can enjoy the Thomas Viaduct, a National Historic Landmark, which showcases the area's rich industrial history.