FAQs - Inmate Mail

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  1. What is the mailing address for an inmate?
  2. What type of mail can an inmate receive?


  1. What is the mailing address for an inmate?

    All incoming mail must be addressed as follows: 


    P. O. Box 15409

    San Luis Obispo, CA  93406

  2. What type of mail can an inmate receive?

    Letters: no more than 4 pages of printed or photocopied 8 ½ x 11. 

    No More than 5 books.

    Paperback books (no hardback books), magazines, newspapers, and periodicals are permitted if, prepaid, sent directly from the publisher or a retail outlet and delivered by the U.S Postal Service. Any book or magazine which contains obscenity, nudity or partial nudity, sexually explicit words or images, items relating to gambling, or material tending to incite violence, racism, riot, arson or any other crime will not be accepted into the jail. 

    The following items are not permitted in the County Jail and will not be accepted if sent through the mail:

    • Letters containing more than 4 pages of printed or photocopies 8 ½ x 11 pages including photographs and internet pages
    • Photographs larger than 4" x 6"
    • Instant (Polaroid) photographs
    • Photos or pictures of nude or partially nude subjects, or sexually suggestive images.
    • Publications containing or promoting obscenity, murder, arson, riot, racism, violence, or gambling
    • Magazines, books, or periodicals not delivered through the mail from the publisher or retail outlet.
    • Hardback books
    • Envelopes larger than 8 ½” x 11 ½”
    • Greeting cards with raised or embossed surfaces or made from heavyweight paper or card stock
    • Greeting cards larger than 6" x 10"
    • Books larger than 6" x 10" x 2"
    • Any type of sticker, glitter, glue, tape, whiteout or paint attached to an envelope or its contents or any perceived biohazard, e.g. lipstick, lip impressions, gloss, perfume, etc.
    • Cash, personal checks, money orders not issued by the U.S. Postal Service, two-party checks and Welfare/Social Security checks
    • Postage stamps, blank greeting cards, envelopes or writing paper
    • Packages of any type (without written approval of a correctional sergeant)
    • Food or medication
    • Staples and Paper clips
    • Mail correspondence between inmates of the San Luis Obispo County Jail and inmates from any other correctional institutions