Mira Loma, now officially a neighborhood of Jurupa Valley, was a former census-designated place 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.