The Santa Clara River Valley is a rural, mainly agricultural, valley in Ventura County, California that has been given the moniker Heritage Valley by the namesake tourism bureau. The valley includes the communities of Santa Paula, Fillmore, Piru and the national historic landmark of Rancho Camulos. Named for the Santa Clara River, which winds through the valley before emptying into the Pacific Ocean between the cities of Ventura and Oxnard, the tourist bureau describes it as ".... Southern California's last pristine agricultural valley nestled along the banks of the free-flowing Santa Clara River."

Ventura County is a county located in the southern part of the U.S. state of California. As of the 2020 census, the population was 843,843. The largest city is Oxnard, and the county seat is the city of Ventura.