Reviewed and updated October 9, 2026 by the SearchSystems.net editorial team. The arrest counts are the ones each agency reported to the FBI, as the FBI held them on October 8, 2026. The jail figures are from the Vera Institute of Justice's Incarceration Trends data. Every office link was opened and checked against the office's own site between September 24, 2026 and September 28, 2026.
Cass County, Iowa, has about 13,000 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Cass County is held at the county jail, run by the Cass County Sheriff's Office, and the jail's record of each person held is a public record. This guide says where to look for someone in custody, what the jail holds and who books people into it.
This guide covers the search, the jail, who books people, state prison and common questions.
Related guides: Cass County public records, Cass County arrest records, Cass County warrants, Cass County criminal records, Cass County court records, Iowa arrest records and Iowa inmate search.
Finding Someone in Custody in Cass County
A person kept in custody after an arrest in Cass County is held at the county jail, run by the Cass County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Cass County Sheriff's Office at casscountyia.gov/county-departments/sheriffs-office (page title: Sheriff’s Office), phone (712) 243-2206, 300 West Broadway Council Bluffs, IA 51501, which answered when SearchSystems opened it on September 28, 2026.
That page is the office's jail information page rather than a roster, so a search for a particular person goes through the office at (712) 243-2206.
The Cass County Jail by the Numbers
On an average day in 2023 the jail held about 7 people, down from about 15 in 2019. Its rated capacity in 2023 was 23 beds, and it ran at 30 percent of it that year. The figures are from the Vera Institute of Justice's Incarceration Trends data.
Cass County has about 13,000 residents (2024 Census Bureau estimate), so the jail holds about 5 people for every 10,000 residents.
Who Books People Into the Cass County Jail
The Cass County Sheriff's Office and the agency that reports for Atlantic make the arrests that end in a booking in Cass County.
The largest arrest counts reported to the FBI were the Cass County Sheriff's Office's 200 for 2025 and Atlantic's 178 for 2025.
Together, the two agencies in Cass County with all twelve months of 2025 on file reported 378 arrests to the FBI that year. Those kept in custody were booked into the county jail; a person cited and released at the scene was not.
The counts, agency by agency and year by year, are in Cass County arrest records.
From the Jail to State Prison
The jail holds people awaiting trial and people serving short sentences. A person sentenced to prison in Cass County serves the sentence in a facility of the Iowa Department of Corrections, whose inmate locator is at doc.iowa.gov/inmate-family-services.
Frequently Asked Questions
How do I find an inmate in Cass County?
Ask the Cass County Sheriff's Office at (712) 243-2206; its jail page SearchSystems verified is at casscountyia.gov.
How many people are in the Cass County jail?
About 7 on an average day in 2023, the latest year in the Vera Institute's jail data, against a rated capacity of 23 beds.
What is the phone number for the Cass County jail?
(712) 243-2206, the number on the page of the Cass County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Cass County go?
To a facility of the Iowa Department of Corrections; its inmate locator is at doc.iowa.gov/inmate-family-services.
Is this the official Cass County website?
No. SearchSystems.net is an independent public records guide, online since 1997. It links to the official county, court and state offices described above and does not hold records, charge for them or take requests.