Who to Call at Johnson County Jail — Extensions, Jail Number, and Business Hours
The main number for the Johnson County Sheriff's Office is 319-356-6020. From there, select Extension 5 to reach the Jail Division directly. This is the quickest way to get routed to the right place if you start with the Sheriff's Office line.
You can also call the Johnson County Jail directly at (319) 356-6025. This is a separate line from the Sheriff's Office.
If you need to go in person, the Johnson County Jail is located at 511 S. Capitol St., Iowa City, IA 52240 (2nd floor).
If you need to send mail to the jail, use this mailing address: PO Box 2540, Iowa City, IA 52244.
The Sheriff's Office is open Monday through Friday, 8:00 am to 4:30 pm. Calling during these hours gives you the best shot at reaching the right person through the main line.
When you call, jail staff can confirm whether someone is currently in custody. This is usually the first thing families need to check after an arrest or transfer.
If the person is in custody, staff can also tell you what charges they're being held on. Knowing the charges helps you understand the situation and plan your next move.
Staff can tell you the bond amount required for release, if a bond applies. This is one of the most practical questions to ask when you're trying to figure out next steps.
In some cases, staff can provide a scheduled release date. If no date has been set yet, they may not have that information available.
Note: The jail staff cannot give out court information over the phone.
You may see both a direct jail number and the Sheriff's Office main line listed for Johnson County. If you can't get through on the jail's direct line at (319) 356-6025, try the Sheriff's Office at 319-356-6020 and select Extension 5 for the Jail Division. Calling Monday through Friday, 8:00 am to 4:30 pm also improves your chances of reaching the right staff quickly.
- ✓ Call Monday through Friday, 8:00 am to 4:30 pm.
- ✓ Ask whether the person is in custody.
- ✓ If they are in custody, ask what charges they are being held on.
- ✓ Ask whether a bond is required for release (if applicable).
- ✓ Ask whether there is a scheduled release date (if applicable).
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