Coordinates: 38°53′18″N 122°14′15″W / 38.88833°N 122.23750°W / 38.88833; -122.23750
Rumsey is an unincorporated community in Yolo County, California. It is located 18 miles (29 km) northwest of Esparto, in the Capay Valley, in the northwestern part of the county. Rumsey's ZIP Code is 95679 and its area code 530. It lies at an elevation of 420 feet (128 m).