Effective May 1st, 2025, the Whiteside County Sheriff’s Office has implemented a new inmate mail processing procedure aimed at improving the safety of both jail staff and inmates while streamlining the delivery of mail.
To reduce the risk of contraband entering the facility and to ensure a safer environment for everyone within the jail, all non–privileged (standard) inmate mail must now be sent to a designated off–site mail processing center. This measure is part of ongoing efforts to modernize facility operations and safeguard those who live and work inside the Whiteside County Jail.
New Mailing Instructions:
All Standard (Non–Legal) Mail
Inmate Name & ID
Whiteside County Jail IL
PO Box 76550
Highland Heights, KY 41076
Legal Mail and Money Orders/Cashier’s Checks Only
Inmate Name & ID
400 N. Cherry St. Morrison, IL 61270
Mailing Guidelines:
All mail must include the inmate’s full name and ID number
- Must include a return address
Mail must not exceed 81⁄2” x 11″, be no thicker than light card stock, and must be scannable
Photographs are the only acceptable enclosures in standard mail (limit of 5 per envelope, printed on photo paper)
All incoming non–legal mail will be opened, read, and scanned at the off–site facility. Any mail found to contain prohibited content or items will be destroyed and not returned.
Prohibited Mail Items Include (but are not limited to):
Stamps, blank envelopes, stationery
Packages, cash, or any currency
Obscene content, gang–related material, threats, escape plans Stickers, address labels, musical or homemade cards
Tracing paper, drawings with colored ink/crayon/marker/glitter Pages from coloring books, white–out, glue, or paint
Internet printouts or provocative content
Any mail that cannot be safely scanned or poses a security risk
Return to Sender Items:
Legal mail or money orders sent to the off–site mail center Certified mail requiring inmate signature
Mail with postage due
Sending Funds:
Money orders and cashier’s checks should be mailed to:
400 N. Cherry St., Morrison, IL 61270
(No correspondence should accompany money orders or checks)
Cash may be deposited using the kiosk in the Sheriff’s Office lobby
Credit card deposits can be made online:
Commissary Funds: www.jailatm.com
Phone/Tablet Funds: www.inmatesales.com
For further questions or clarification, please contact the Whiteside County Sheriff’s Office at 815-772-4044 and press 2 for the jail
We appreciate the community’s cooperation in supporting these necessary changes to ensure the continued safety and security of our facility.
