Southern Dakota Insurance Agency


Tony Opbroek is licensed in all lines of insurance. He has worked at the office since 1998 and is licensed in all lines of insurance. Tony’s wife Sherry, is a 6th grade teacher at Burke Public Schools. They have three children and four grandchildren. Tony is a retired Captain from the South Dakota Army National Guard. He served 21 years and won several awards. In his spare time, Tony likes to fish, golf, and spoil his grandchildren.





Jan Determan is licensed in property and casualty insurance. She started working at Southern Dakota Insurance in 2004. Jan and her husband Ron have five children and nine grandchildren. In her spare time, Jan enjoys cross stitching, playing the keyboard, and cooking.