Jurupa Valley is a city in the northwest corner of Riverside County, California, United States. It was the location of one of the earliest non-native settlements in the county, Rancho Jurupa. The Rancho was initially an outpost of the Mission San Gabriel Arcángel, then a Mexican land grant in 1838. The name is derived from a Native American village that existed in the area prior to the arrival of Europeans.

Rancho Jurupa was a 40,569-acre (164.18 km2) Mexican land grant in California, United States, that is divided by the present-day counties of Riverside and San Bernardino. The land was granted to Juan Bandini by Governor Juan B. Alvarado in 1838. Located along both banks of the Santa Ana River in southern California, the rancho included much of the land in the present day city of Jurupa Valley, as well as the downtown area in the city of Riverside.