Sioux County Sheriff

To serve & Protect


As a law enforcement agency, called to serve the public, we continue to work on building trust with the people we serve.

We are committed to our Vision Statement:

"The Sioux County Sheriff’s Office will be dedicated to preserving a high quality of life and the enhancement of public safety. We will be committed to serve with professionalism, diligence, respect, integrity and concern for all people. We will foster an environment in which the sheriff’s office and the community work together as catalysts for positive community development."

Our men and women enter this profession with a sincere desire to preserve and respect the sanctity of life.

We pledge that we will continue to offer our hand to build community partnerships and maintain an environment of openness and respect for all whom we serve.

  • Sheriff Dan Altena



Latest news & Announcements

Sioux County Sheriff’s Office hosts Basic School Resource Officer (SRO) training – August 8-12

August 12, 2022

The Sioux County Sheriff’s Office recently hosted a National Association of School Resource Officers (NASRO) Basic School Resource Officer training course. This training took place August 8 – 12, 2022. The National Association of School Resource Officers (NASRO,) the world’s leader in school-based policing, is dedicated to making schools and children safer by providing the … Read more

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Sheriff Altena to retire

July 12, 2022

To the People of Sioux County: I will be retiring from my position as Sioux County Sheriff, effective August 31, 2022. My chief goal as a law enforcement officer has always been to help maintain the high quality of life that we enjoy in Sioux County by providing the very best public safety possible. I … Read more

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Iowa changes ATV/UTV laws effective July 1

June 22, 2022

Effective July 1, All terrain vehicle (ATV) and utility terrain vehicle (UTV) users will now be able to ride in any of Iowa’s 99 counties, with a few restrictions. Captain Jamie Van Voorst says, “An ATV is a vehicle that can be straddled by a single rider, while a UTV is designed with a cabin … Read more

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Public Safety Reminder: Move Over for emergency vehicles, safely *VIDEO*

May 31, 2022

Please take a moment to watch the below video for a good safety reminder to not only move over for emergency vehicles that are stopped with its flashing lights on, but to slow down and please do it safely.   Recently, Sioux County Deputy Sheriff Jessica Dorhout was engaged in a traffic stop when her … Read more

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Sioux County Sheriff’s Office K9 Team Excels at Narcotic Trials

April 16, 2022

Recently, Sergeant Justin De Bruin and his K9 partner, Sonny, attended the annual United States Police Canine Association (USPCA) narcotics trials.  This year, the trials were hosted by the Clay County Sheriff’s Office in Spencer, IA. 55 canine teams competed in the trials to maintain or receive certifications. The certification involved searching five cars and … Read more

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Domestic Violence Awareness Simulation at Boyden-Hull JR/SR High School

April 2, 2022

This past week, the Boyden-Hull JR/SR High School faculty and staff participated in a Domestic Violence Awareness Simulation, ‘In Her Shoes®’, which is developed and owned by the Washington State Coalition Against Domestic Violence, Seattle, WA; The following day, the senior class at the school participated in the simulation. ‘In Her Shoes®’ is a great community education … Read more

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