Glen Arm, MD

ZIP code 21057 is located in Glen Arm, Maryland. This rural area is known for its serene landscape and scenic views. The most notable landmark in this ZIP code is the historic Jerusalem Mill Village, a restored 18th-century milling community that offers visitors a glimpse into Maryland's past. Additionally, residents and visitors can enjoy outdoor activities at Gunpowder Falls State Park, which features hiking trails and waterfront access.