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

Full Time Deputy Sheriff

April 22, 2021

The Sioux County Sheriff’s office is accepting applications for full time deputy sheriff positions; for more information click here.

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National Prescription Drug Take Back Day – April 24

April 21, 2021

The next National Prescription Drug Take Back Day is scheduled for Saturday, April 24, form 10:00 a.m. to 2:00 p.m. Too often, unused prescription drugs find their way into the wrong hands. That’s dangerous and often tragic. That’s why it was great to see thousands of folks from across the country clean out their medicine … Read more

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Fatal motor vehicle accident northwest of Sioux Center – April 18

April 18, 2021

*UPDATED RELEASE* On Sunday, April 18, at 11:41 a.m., the Sioux County Sheriff’s Office began an investigation of a motor vehicle accident that occurred on Elmwood Avenue (County Road K-30), six miles south of Rock Valley, IA. Dyson Kooima, age 19, of Rock Valley, IA was driving a 2006 Ford Fusion northbound on Elmwood Avenue. … Read more

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Sheriff’s Office canine team performs well at dog trials

April 2, 2021

Recently, Sergeant Justin De Bruin and K9 Sonny attended the 2021 United States Police Canine Association narcotic trials held in Fort Madison, IA. The sheriff’s office canine team passed with a score of 197.67 out of a possible 200 points. The test consisted of searching five cars and three rooms to locate a total of … Read more

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Recent ALICE training sessions conducted

February 16, 2021

Our School Resource Officer, Deputy Waylon Pollema, continues to train our area schools in the ALICE Training concepts. ALICE stands for Alert, Lockdown, Inform, Counter, Evaluate. ALICE Training offers a set of common-sense lifesaving options and proactive strategies that authorizes and empowers the use of existing building infrastructure, technology and human actions. Using those strategies … Read more

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Weapon Permits now issued online through new system

March 31, 2020

The Sioux County Sheriff’s Office hopes to improve the concealed weapon pistol permit process by allowing residents to now fill out an application online. You can now apply online for a concealed weapon permit and also a permit to acquire a pistol or revolver through the Sheriff’s Office website: Application for Iowa Permit to Carry … Read more

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