Provolt is an unincorporated community in Jackson County, Oregon, United States. It is about 15 miles southeast of Grants Pass on Oregon Route 238, near the Applegate River on the county line betwe…Provolt is an unincorporated community in Jackson County, Oregon, United States. It is about 15 miles southeast of Grants Pass on Oregon Route 238, near the Applegate River on the county line between Jackson and Josephine counties.