High Quality Content by WIKIPEDIA articles! Walnut Hills High School is a public college-preparatory high school in Cincinnati, Ohio, United States. Operated by the Cincinnati Public Schools, it houses grades seven through twelve and maintains a culturally diverse student body. The school has been given an excellent rating by the Ohio Department of Education.Newsweek named it the 57th best public high school in America in 2007, and U.S. News World Report ranked it 36th in the nation in 2008.