Deltaville is a small unincorporated community and census-designated place on the eastern tip of Middlesex County in the eastern part of the U.S. state of Virginia. It is known for being a vacation spot with sailing, fishing, and other water activities. The town developed around being a large boat building area, mostly for commercial bay watermen. However, those days have passed and the area is now dotted with numerous marinas, boatyards, and marine related businesses.