Pleasant Hill is a city in Contra Costa County, California, in the East Bay of the San Francisco Bay Area. The population was 32,837 at the 2000 census. It was incorporated in 1961. Pleasant Hill is the home of College Park High School, Diablo Valley College, John F Kennedy University, the central branch of the Contra Costa County Library system, and Pleasant Hill Recreation & Park District. Pleasant Hill apartments for rent comparison page shows most up to date rent information on Pleasant Hill apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.