West valley detention center in rancho cucamonga. San Bernardino County West Valley Detention Center, situated in the busy city of Rancho Cucamonga, California, stands as an important detention facility within the region. Rancho Cucamonga, CA 91739 All mail sent to an inmate at the San Bernardino West Valley Detention Center must include the sender's name and mailing address in the top left corner of the envelope or postcard. An inmate's commissary account at the San Bernardino West Valley Detention Center in CA can be used to buy snacks, hygiene products, stamps and stationary. Failure to include your return address will most likely result in your mail NOT being delivered and your letter destroyed. Therefore About West Valley Detention Center The West Valley Detention Center, located in Rancho Cucamonga, CA, is a secure facility that houses inmates. Pictures depicting gang affiliation or pictures of a sexual nature will not be forwarded to the inmate. This facility processes offenders arrested for misdemeanors and felonies. The San Bernardino County Jail in Rancho Cucamonga is also known as The West Valley Detention Center Jail, located at 9500 Etiwanda Avenue. San Bernardino County - West Valley Detention Center, opened in 1991, is a 3,347-bed facility operated by the San Bernardino County Sheriff's Department. For inmate details, you can contact them 24/7 at 909-350-2476. vwqhq muir nadjc l1im 0fjdf zfg nv3ni n4c a4 l7u