Photo courtesy of Heritage Funeral Home and Cremation Services - Sioux Falls
Jan 7, 1945 - Jan 7, 2026 (Age 81)
I got to know Denni thru Peggy and Red. He was such a kind, caring man. He stood beside the McDonald family during their loss. He made a big impression on our Sorlien family, what an awesome friend to many.
Sheryl Frey
January 27, 2026 | Kaylor, SD
I did not know Dennis but I did know his daughter Stacey from Esurance,and we talked many times at work and she always said that I look like her father.Looking at his picture we could have been twins.God has him now and being the same age we never know when God is going to call us home.
Frank Fryer
January 14, 2026 | Sioux Falls, SD
Denny was such a great guy! When I started working at Sysco, Denny was my "go to" guy. He would help me whenever I needed anything. He was such a sweet guy and I am glad I got to know him. Sorry for your loss
Lori Larson
January 13, 2026 | Friend
Vikings fans forever
I will miss you dear friend!
John Eastman
January 13, 2026 | Harrisburg, SD | Friend
Love you dad. I couldn't have asked for a better father and friend. God willing I will see you soon. Love you
Michael Degroot
January 13, 2026 | Sioux Falls, SD | Son
Denny purchased cars from me through the years. He liked to deal a bit but always fair. Always enjoyed his visits to have a cup of coffee. A good man, will miss running into him.
James Swanson
January 12, 2026
Thank you for your Military Service Dennis.
T. D.
January 09, 2026 | Omaha, NE
DeGroot’s and the Ronan’s we were tight His smile will be missed
Gabriel Ronan
January 08, 2026 | Sioux Falls, SD | Friend
My sympathy to the family of Denny!
Terry Carson
January 08, 2026 | Pipestone, MN | Friend
Dennis Ray DeGroot,81, passed away at Sanford/USD Medical Center in Sioux Falls, SD on Wednesday, January 7,2026.
Services will be held at 10:00 a.m. on Friday, January 16, 2025 at Heritage Funeral Home. Interment at St. Michael’s Cemetery will immediately follow the luncheon.
Dennis DeGroot was born on January 7, 1945, in Adrian, Minnesota. He was the son of Henry DeGroot and Louise Rust. He received his education in Pipestone, Minnesota and was a graduate of Central High School, Class of 1962.
Dennis entered active military service in the United States Air Force, Air National Guard, and served his country from 1965 to 1971. He received an Honorable Discharge on April 21, 1971.
On December 1, 1972, Dennis was united in marriage to Deborah Thompson in Pipestone, Minnesota. This marriage was blessed with 3 children: Stacey, Mike and DJ. The couple resided in Sartell, Minnesota and later moved to Sioux Falls, South Dakota. They shared 46 years of marriage.
Dennis was employed at Gamble Robinsons, Food Services of America and Sysco Foods as a sales manager. He retired in 2015. Dennis was a member of St. John Paul II Catholic church.
Dennis enjoyed coffee with his friends, working out at Active Generations, playing solitaire on his computer, watching the Minnesota Vikings, his westerns, and shopping for cars. He especially enjoyed spending time with his family, grandchildren, and friends. His friends and family remember him as a genuine, kindhearted man who was full of life and humor.
Dennis is survived by his children; daughter Stacey DeGroot of Sioux Falls, South Dakota, son Michael DeGroot of Harrisburg, South Dakota, and son Daniel (Becca) DeGroot of Waconia, Minnesota; grandchildren, Jordan DeGroot, Jayla Meeks, Norah DeGroot, McKenna DeGroot and great granddaughter Mazie DeGroot; siblings, sister Pat Wehrenberg, LaCrosse, WI, as well as many other relatives and friends.
Dennis is preceded in death by his wife Debbie DeGroot, parents Henry and Louise, sisters Carole Zwart and Shari DeGroot, nephews Chad Miller, James Miller, Chris Lohre, niece Sheri Gustafson, sister-in-law Cindy Haugen Beringer.
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