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County Sheriff

Lincoln County Sheriff
Dennis Johnson

128 N. Main
Canton, SD 57013-1785
Phone: 605-764-5651
FAX: 605-764-2767
Web site:

Dennis Johnson

Dennis Johnson began his law enforcement career in 1977 when he joined the US Army as a military policeman. He entered South Dakota law enforcement  in January 1981 and served in the Harrisburg and Canton Police Departments until he was elected Lincoln County Sheriff in  1998. He took office in January 1999 and has served in that capacity since. Lincoln County’s population has grown 85.8% since 2000 and has been the fastest growing county in the state and one of the fastest growing counties in the nation. The Sheriff’s Office currently provides Patrol, Investigations, Warrant, Civil, and Courthouse Security operations within the county. The Sheriff’s Office also contracts with the City of Harrisburg and provides 120 hours per week of law enforcement services.    Sheriff Johnson is the current president of the South Dakota Sheriffs’ Association and has served or is currently serving on numerous other law enforcement related boards as well as a number of other non-profit board of directors.