Schools in De Graff, OH Riverside High School2096 County Road 24 SDe Graff, OH, 433189375854599High SchoolHigh SchoolsNew Knoxville SchoolPrivate Schools K 12Public SchoolsRiverside Local School Dist2096 County Road 24 SDe Graff, OH, 433189375855981High SchoolHigh SchoolsNew Knoxville SchoolPrivate Schools K 12Public SchoolsWest Liberty High SchoolShow MoreSee AlsoHigh SchoolsPrivate Schools (K-12)Public Schools