Sumerduck is a small unincorporated village located equidistant between Fredericksburg, Culpeper, and Warrenton, as it is in Fauquier County in the U.S. state of Virginia. The name was derived from the fact that ducks flocked here in the summer. Sumerduck is home to the major portion of the C.F. Phelps Wildlife Management Area, with several entrances to the reserve off of the major thoroughfare, VA Route 651.