Mira Loma was a census-designated place (CDP) in Riverside County, California, United States. The population was 21,930 at the 2010 census, up from 17,617 at the 2000 census. Mira Loma was known as Wineville prior to 1930. The name was changed that year to help disassociate the community from the Wineville Chicken Coop Murders. On July 1, 2011, parts of Mira Loma became part of the newly incorporated City of Jurupa Valley, while other parts became part of the newly incorporated City of Eastvale in 2010. According to the United States Census Bureau, the CDP has a total area of 8.1 square miles (21km2), of which, 8.0 square miles (21km2) of it is land and 0.2 square miles (0.52km2) of it (1.87%) is water. Rancho Jurupa/Jurupa Valley was originally granted by the Mexican government to Sn. Dn. Juan Bandini, on September 28, 1838. Originally known as Wineville, it is located in the modern day “Jurupa” area of unincorporated Riverside County. It is separated from the city of Riverside by the Santa Ana River to the south, borders the Ontario/Fontana area of San Bernardino County to the north and west, and Pedley / Glen Avon to the east.