The history of Jurupa Valley started from the earliest non-native settlements in the county, Rancho Jurupa. The Rancho was an outpost of Mission San Gabriel Arcángel, a Mexican land grant in 1838. The city of Jurupa Valley borders the Indigenous territories of two tribes, the Gabrielino and Serrano tribes.
Over the years, people have said “Jurupa” to one another to signify peace and friendship. Some people say that it is a greeting, while other people say that it is the first padre to visit the area. There are also some interpretations that say Jurupa means “slowly” or “diligently.”