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State prison · California

Mule Creek State Prison
Address, Mail & Visiting Guide

How to write to, mail something to, and visit someone at Mule Creek State Prison. Last reviewed October 2026. Always confirm details on the official CDCR page.

Operated By
California Department of Corrections and Rehabilitation (CDCR)
Phone
(209) 274-4911
Facility Address
Mule Creek State Prison
4001 Highway 104
Ione
CA 95640
About
State prison
📇 What you'll need: the person's full legal name and their CDCR number (a letter followed by five digits, such as A12345). Mail, visits and deposits all use it to route correctly.
How to Send Mail

Address mail to: Inmate's full name + CDCR number + housing/bed number, P.O. Box 409099, Ione, CA 95640. CDCR mail goes to the institution mailing address, not the street address. Confirm the current mail rules, including what can and cannot be sent, on the official CDCR page before you send anything.

Visiting

Visitors must be approved by CDCR before the first visit, and visits are scheduled in advance through the CDCR Visitation Scheduling Application (VSA). Days and hours differ by institution, so check the official CDCR page for this prison and book before you travel.

Confirm the current phone, tablet and video vendor on the official CDCR page, since these can change.

Official CDCR page for Mule Creek State Prison →

Sending Money

Deposit options and fees depend on the vendor your state uses and change from time to time. Our guide to sending money covers the common methods, and the official CDCR page lists the approved ones.

⚠️ Double-check before you send anything. Facility rules, addresses and approved vendors can change with little notice. Confirm current details on the official CDCR page before mailing letters, packages or money.
Related Guides
How to Write a Letter → What Can You Send Them? → How to Send Money → All California prisons Browse California Inmate Pen Pals
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