Winnebago County Sheriff

EMERGENCY Dial 9-1-1 | Non-Emergency outside the City of Rockford 815-282-2600 | Non-Emergency inside the City of Rockford 815-966-2900

Mail/Inmate Property



How to address the envelope:


  How to address envelope

Mail must include:

Inmate’s name (MID# is optional but helpful) or MID#
Sender’s Name
Sender’s Address

Mail that does not include the Inmate’s name or MID# will be returned to sender
   To find an inmate’s MID# visit
Mail that does not include sender information will be returned to the Post Office

All mail is subject to screening.    

NO Glitter                                   NO Lipstick
NO Glued or loose stones            NO Staples
NO Glued pages                           NO Jewelry
NO Stickers                                   NO Books or Magazines
NO Labels                                     NO Checks, Cash or Money Orders
NO Oversized mail                        NO Envelopes or stamps*
 *Inmates can purchase stamped envelopes through commissary.

Inmates are limited to 10 photographs in their possession at one time.

Mail containing inappropriate content will be returned to sender. Examples of inappropriate content include photos, drawings or pictures containing nudity, gang references, alcoholic beverages or anything of a sexual nature.

Inmate mail is not delivered on Saturdays, Sundays or Holidays.



If an inmate is released to Illinois Department of Corrections see the Inmate Transfer to IDOC page for inmate property information.

You are here: Corrections Jail

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Winnebago County Sheriff's Office | 650 W. State St. | Rockford, IL 61102-2201 | 815-319-6000
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