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. Every office link was opened and checked against the office's own site between September 24, 2026 and October 9, 2026.
Sioux County, Nebraska, has about 1,100 residents (2024 Census Bureau estimate). A person kept in custody after an arrest in Sioux County is held at the county jail, run by the Sioux 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, who books people, state prison and common questions.
Related guides: Sioux County public records, Sioux County arrest records, Sioux County warrants, Sioux County criminal records, Sioux County court records, Nebraska arrest records and Nebraska inmate search.
Finding Someone in Custody in Sioux County
A person kept in custody after an arrest in Sioux County is held at the county jail, run by the Sioux County Sheriff's Office, whichever agency made the arrest.
SearchSystems opened and checked the jail page of the Sioux County Sheriff's Office at siouxcountyne.gov/sheriff-office (page title: Sheriff’s Office | Sioux County), phone (308) 668-2418, 69346, which answered when SearchSystems opened it on October 9, 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 (308) 668-2418.
Who Books People Into the Sioux County Jail
The Sioux County Sheriff's Office makes the arrests that end in a booking in Sioux County.
The FBI's agency list also places one more agency in Sioux County: the State Patrol in Sioux County (state police).
The Sioux County Sheriff's Office reported 0 arrests to the FBI for 2025. 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 Sioux County arrest records.
From the Jail to State Prison
A sentence of more than a year is served in state prison, not the jail; the Nebraska Department of Correctional Services lists its inmates at dcs-inmatesearch.ne.gov/Corrections/COR_input.jsp.
Frequently Asked Questions
How do I find an inmate in Sioux County?
Ask the Sioux County Sheriff's Office at (308) 668-2418; its jail page SearchSystems verified is at siouxcountyne.gov/sheriff-office.
What is the phone number for the Sioux County jail?
(308) 668-2418, the number on the page of the Sioux County Sheriff's Office SearchSystems verified.
Where do people sentenced to prison in Sioux County go?
To a facility of the Nebraska Department of Correctional Services; its inmate locator is at dcs-inmatesearch.ne.gov.
Is this the official Sioux 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.