San Quentin State Prison (Sq)

Getting on the visitor list at San Quentin State Prison (Sq) takes time. The California Department of Corrections requires paperwork and a background screening that typically takes 2-6 weeks to process.

Getting Approved

Download the visitor application from the California DOC website (CDCR) or request one by mail. You will need to provide your Social Security number, date of birth, and relationship to the inmate. Felony convictions do not automatically disqualify you, but violent felonies or prior smuggling charges make approval less likely. Once approved, your name stays on the list unless the inmate requests removal or you violate visiting rules.

What to Actually Expect

• Dress code is enforced strictly — No denim at many state prisons (it matches inmate clothing). No shorts above the knee, no tank tops, no clothing without undergarments visible. Staff have discretion to deny entry based on attire.
• You will be searched — Expect to pass through a metal detector, possibly an ion scanner (detects drug residue), and a pat-down. Drug residue on clothing from secondhand contact (handling cash, touching surfaces) can trigger a positive and end your visit before it starts.
• Vending machines only for food — No outside food or drink. Bring \$10-\$20 in coins or small bills for vending. This matters more than you think — sharing a meal from the vending machines is the most normal interaction inmates get.
• Photos may be available — Many prisons offer a photo service during visits (Polaroid-style). These cost \$2-\$5 each and are often the only current photos an inmate has of their family. Ask about this when you check in.

For current visiting hours, holiday closures, and lockdown status, call (415) 454-1460 or visit their official website.

If you are trying to locate someone at San Quentin State Prison (Sq), the California state offender database is the authoritative source and costs nothing to search.

Search CDCR Inmate Locator »

What You'll Find

State inmate search tools typically show the current facility, projected release date (also called ERD or earliest release date), custody classification, and sentencing information. The projected release date factors in good-time credits and can change — it is an estimate, not a guarantee.

Parole and Release Dates

The date shown online is usually the earliest possible release date, assuming the inmate earns all available good-time credits. Disciplinary infractions can push this date back. Parole eligibility is often earlier than the projected release date — contact the California Parole Board for parole hearing dates, as these are not always in the inmate search system.

Money sent to an inmate at San Quentin State Prison (Sq) funds their commissary account. The California DOC uses a contracted provider to handle all deposits.

How the Money Gets There

• Online deposit (JPay/GTL/Access Corrections) — The fastest option. Create an account on the provider's website, search for the inmate by name or state ID, and deposit using a debit card. Fees range from \$3.50-\$7.95 per transaction depending on the amount. Funds typically post within 24 hours.
• Money order by mail — The cheapest option. Make the money order payable to the state DOC or the specific provider. Include the inmate's full name and state ID number. Mail to the address specified on the DOC website. Processing: 7-14 business days.
• MoneyGram at retail locations — Some state DOCs accept MoneyGram. Check the state's website for the correct receive code.

Commissary Pricing

State prison commissary prices are typically marked up 20-40% above retail. A \$1 ramen packet may cost \$1.40. Hygiene items and snacks carry the highest markups. Most states publish their commissary price list on the DOC website — check before depositing so you know how far the money will go. Spending limits vary by state but are usually \$50-\$100 per week.

Staying in phone contact with someone at San Quentin State Prison (Sq) requires understanding the state's phone system. Here is how it works and what it costs.

Rates & Limits

State prison phone rates are capped by the FCC at $0.12-$0.14 per minute for in-state calls. Out-of-state calls may cost slightly more. Calls are limited to 15-30 minutes depending on California policy. Most states allow inmates a set number of calls per day or week. Setting up a prepaid account is cheaper than collect calls.

Setting Up

• Prepaid account — Create an account with the prison's phone provider (usually JPay/Securus or GTL/ViaPath). Load money onto the account so calls can be deducted automatically. This avoids the higher collect-call surcharges.
• Approved list — The inmate must add your number to their approved phone list. This is separate from the approved visitor list. It may take a few days to process.
• Phone hours — Inmates access shared phones in their housing unit during designated hours, typically 7 AM to 10 PM. Weekend mornings tend to have shorter wait times for the phones.

Troubleshooting

If calls are not connecting, check that your phone number is not blocked by a spam filter, that you do not have a carrier-level collect-call block (common on many plans by default), and that the prepaid account has a balance. Some carriers require you to call and specifically enable collect/third-party billing acceptance.

Staying in contact with someone at San Quentin State Prison (Sq) is possible through multiple channels. Here is what each costs and how to set them up.

Electronic Messaging (JPay/GTL Tablets)

Most state prisons provide tablets that inmates can use for email-style messaging, music, and educational content. The messaging service is run by a contracted provider — usually JPay (owned by Securus) or GTL. Messages are sold in "stamps" or credits, typically costing \$0.25-\$0.50 per message. Photos can be attached for an extra fee. Create a free account on the provider's website to start messaging. Messages are reviewed by staff and may be delayed 24-48 hours before delivery.

Phone Calls

State prison phone rates are capped by the FCC at \$0.12-\$0.14 per minute for in-state calls. Out-of-state calls can cost more. Calls are limited to 15-30 minutes depending on state policy. Inmates call from shared phones during designated times. Set up a prepaid account with the provider to avoid higher collect-call rates. All calls are recorded and monitored except privileged legal calls.

Postal Mail

• Address to — [Full Legal Name, State ID Number], SAN QUENTIN STATE PRISON (SQ), MAIN STREET, San Quentin, CA 94964
• Books — Most state prisons accept books only from approved vendors (Amazon, Barnes & Noble, or publisher direct). Used books from home are almost always rejected.
• Photos — Generally allowed but check the state's rules on quantity, size, and content restrictions. Printed photos only — no digital media.

San Quentin State Prison (Sq) is a prison serving San Quentin and the surrounding area in California. It is situated in Marin County, operates under State jurisdiction, is classified as a maximum security facility, has a capacity of 3,082 inmates.

The facility currently houses approximately 3,989 inmates.