De Grey is an unincorporated community in Hughes County, in the U.S. state of South Dakota. [1]
A post office called De Grey was established in 1886, and remained in operation until 1955. [2] The community was named in honor of Charles DeGrey, a pioneer settler. [3]
44°17′09″N99°55′04″W / 44.28583°N 99.91778°W