Mira Loma, now officially part of Jurupa Valley, was a census-designated place (CDP) in Riverside County, California, United States. Its population was 21,930 in the 2010 census, up from 17,617 in 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.
In 2010, parts of Mira Loma became part of the newly incorporated city of Eastvale, California.
On July 1, 2011, parts of Mira Loma became part of the newly incorporated city of Jurupa Valley, California.
According to the United States Census Bureau, the CDP has a total area of 8.1 square miles (21 km2), of which, 8.0 square miles (21 km2) of it is land and 0.2 square miles (0.52 km2) 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.