Located between Sacramento and San Francisco, off I-80, California State Prison, Solano is a male-only state prison located in the city of Vacaville, Solano County, California, adjacent to the California Medical Facility. The facility is also referenced as Solano State Prison, CSP-Solano, and CSP-SOL
 
Main Phone: (707) 451-0182
Physical Address: 2100 Peabody Road, Vacaville, CA 95687 (Directions)
Mailing Address: P. O. Box 4000, Vacaville, CA 95696-4000