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

Our Business and Administration Offices will be closed today for the Martin Luther King Jr. holiday

January 17, 2022

While these offices are closed for the holiday; weapon permits, accident reports, sex offender registry, investigative reports and civil process will not be available until the offices open on Tuesday, January 18, at 8:30 a.m.

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Domestic Violence Awareness Simulation presented to law class

January 13, 2022

On Thursday, January 12, Mr. Jon Holwerda’s law class at Unity Christian High School participated in a Domestic Violence Awareness Simulation, ‘In Her Shoes®’, which is developed and owned by the Washington State Coalition Against Domestic Violence, Seattle, Washington; In Her Shoes® is a community education tool designed for participants to learn about domestic violence … Read more

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Sioux County Telecommunications Operator recipient of prestigious award

November 23, 2021

Recently, Sioux County Telecommunications Operator (Dispatcher), Kevin Harskamp, was a recipient of the Iowa Emergency Medical Services (EMS) Association’s Dispatcher of the Year Award. The award was a result of the nomination by members of the Sioux County EMS Association; the EMS association consists of members of 10 emergency response agencies in Sioux County. The … Read more

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Crime Scene Investigation Class a success

October 27, 2021

Recently, our School Resource Officer, Deputy Waylon Pollema, helped lead a crime scene investigation (CSI) activity with Mr. John Holwerda with his law class at Unity Christian High School in Orange City, IA. Over the course of two weeks, students investigated a mock crime that occurred using evidence, interviews, and collaboration with classmates. The students … Read more

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Students use the Fire Safety House to learn during Fire Safety Week

October 6, 2021

The week of October 3 – 9 is Fire Prevention Week. Recently, our School Resource Officer (SRO), Deputy Waylon Pollema, assisted the Hull Fire Department and Boyden Fire Department in bringing a valuable fire prevention education tool to the students at the Hull Christian School and the Boyden-Hull Elementary School. The Mobile Fire Safety house … Read more

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Video: Seasons Center for Behavioral Health Mobile Response Program partners with sheriff’s office

September 29, 2021

We are very grateful for a new partnership with the Seasons Center for Behavioral Health Mobile Crisis Program that has become available to the sheriff’s office and area law enforcement in Sioux County. This response team is available 24/7 and has already been assisting our deputies and area law enforcement on calls to better assess … Read more

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