Evanston is an unincorporated community in Huff Township, Spencer County, in the U.S. state of Indiana. History A post office was established at Evanston in 1891, and remained in operation until it was discontinued in 1989. Geography Evanston is located at at an elevation of 413 feet. The nearest city is Tell City. References Unincorporated communities in Indiana Unincorporated communities in Spencer County, Indiana Southwestern Indiana