Pleasant Hill, residential city (1990 pop. 31,585), Contra Costa co., W Calif.; inc. 1961. First settled in 1844, the area remained rural until the housing boom of World War II. Electronic equipment is one of several diverse manufactures. Pleasant Hill is the seat of John F. Kennedy Univ.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.