Set in scenic Frederick County Maryland, Middletown is steeped in history—from the Colonial settlements of the mid-1600s to today's high-tech biological engineering presence. A young Lieutenant George Washington commented that the Middletown Valley was one of the most beautiful places he had ever seen. With great places to shop and eat, Middletown hosts many town-wide events and celebrations year round and features more than 190 acres of parkland perfect for cycling, walking and jogging, or enjoying a round of golf.