Who to Call at Johnson County Jail (phone extensions, when to call, and what staff can tell you)
Getting accurate information about someone at Johnson County Jail means calling the right number—and the right extension. Here's who to call, when to call, and what staff can actually tell you over the phone.
The main number for the Johnson County Sheriff's Office is 319-356-6020. To reach the Jail Division, dial extension 5. You may also see (319) 356-6025 listed - that's the direct line commonly used for jail-related questions.
Need to visit in person? The jail is at 511 S. Capitol St., Iowa City (2nd floor). For mail, use PO Box 2540, Iowa City, IA 52244.
Extensions and Scripts
- ✓ 319-356-6020, Extension 5 - Jail Division
Once you reach the Jail Division (extension 5), keep it simple. Give the person's full name and date of birth if you have it. Then ask one clear question: "Can you confirm whether they're in custody?" or "Can you tell me the bond amount?" Mentioning your relationship up front - especially if you're calling about bond or release planning - can help move things along.
For non-emergency questions, call during business hours: Monday through Friday, 8:00 am to 4:30 pm. You're more likely to reach the right person and get a complete answer.
Note: Outside these hours, staffing is limited. Calls may take longer, or you might be asked to call back during business hours.
Jail staff can share the basics families usually need first: whether someone is in custody, what charges they're being held on, and the bond amount (if bond applies). They may also provide a scheduled release date when one is available.
Important: Johnson County jail staff cannot give out court information.
- Contact the inmate’s attorney - Court-related questions (hearings, filings, court dates) should go through the attorney.
- Check Iowa Courts Online - Court information is also available through Iowa Courts Online.
- Call back during business hours - If you called outside Monday–Friday, 8:00 am–4:30 pm, try again during that window for the best chance of reaching the right staff.
You'll see two numbers floating around - 319-356-6020 and (319) 356-6025. Before saving either for later, double-check the current contact info on the official Johnson County website.
Quick reference: Johnson County Jail is at 511 S. Capitol St., Iowa City (2nd floor). Mailing address: PO Box 2540, Iowa City, IA 52244.
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