Johnson County Jail Contact Guide: Who to Call and When

For most jail-related questions, call (319) 356-6025. This is the Johnson County Jail's public line - your best bet for general information or quick confirmations.

Need to reach the Sheriff's Office main line? Call 319-356-6020. From there, Extension 5 connects you directly to the Jail Division.

Heading there in person? The jail is at 511 S. Capitol St., Iowa City, IA 52240 (2nd floor).

Mail goes to PO Box 2540, Iowa City, IA 52244. Sending a letter to someone in custody? Address it with their name, then PO Box 2540, Iowa City, IA 52244.

The Sheriff's Office is open Monday–Friday, 8:00 am–4:30 pm. Non-urgent questions? Call during these hours for the quickest response, especially if you need a specific staff member or follow-up.

When calling the Sheriff's Office business line (319-356-6020), the right extension saves time. Extension 5 is the Jail Division. Extension 3 handles Records. Other useful options: Extension 2 for deputy assistance or reporting activity, Extension 4 for Civil Division, Extension 6 for Investigations, Extension 7 for Administration, Extension 8 for GPS Monitoring, and Extension 9 for the Reserve Mailbox.

• ✓ Jail questions or reaching the Jail Division - call 319-356-6020 and use Extension 5
• ✓ Records requests - call 319-356-6020 and use Extension 3 (Records Division)
• ✓ Deputy assistance or to report an activity - call 319-356-6020 and use Extension 2
• ✓ Civil Division - call 319-356-6020 and use Extension 4
• ✓ Investigations - call 319-356-6020 and use Extension 6
• ✓ Administration - call 319-356-6020 and use Extension 7
• ✓ GPS Monitoring - call 319-356-6020 and use Extension 8
• ✓ Reserve Mailbox - call 319-356-6020 and use Extension 9