Folsom State Prison is a California State Prison in Folsom, California, U.S., approximately 20 mi northeast of the state capital of Sacramento. It is one of 35 adult institutions operated by the California Department of Corrections and Rehabilitation.
 
Main Phone: (707) 451-0182
Physical Address: 300 Prison Road, Represa, CA 95671 (Directions)
General Mailing: P.O. Box 910, Represa, CA 95671
Inmate Mailing (all facilities): P.O. Box 715071, Represa, CA 95671