McHenry County Sheriff

Inmate Mail

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All mail must be sent to the facility and cannot be dropped off for detainees/inmates. Incoming mail will be delivered to detainees/inmates no later than (24) twenty-four hours after it is received from the Post Office. Outgoing mail will be forwarded to the Post Office no later than (24) twenty-four hours after it is received from the detainees/inmates.

The following items are prohibited and will be returned to the sender:

Letters and cards with ornamentation (musical, plastics, glitter, wood, metals, cloth, ribbon, cord, etc.), adhesives, paints, colored pencils, crayons, any foreign substances (paper altered/discolored, perfume, ink runny)
Photos larger than 4"x 6", Polaroid photos, pictures/photos depicting alcohol, drugs, gang affiliation, weapons (real or toys), nudity or sexual content
Books, booklets/pamphlets, newspapers, magazines, periodicals
Detainees/Inmates may not receive blank paper, stamps or envelopes in the mail.
Correspondence from other detainees/inmates, including use of a third party outside the facility to circulate mail back into the facility.
Cigarettes

If no return address is available, the package will be destroyed.

There will be no incoming or out-going mail on the weekends and holidays.