Parents of the couple are Tim and Linda Grady of Le Mars and Ron and Joyce Koth of Rapid City, S.D.
Anne Grady, sister of the bride, was maid of honor. Bridesmaids were Megan McCarthy, Amy Hoffman, Sarah Long, Angela Reich and Leah Ratzlaff.
Flowergirl was Jenna Nohr.
Karl Koth, brother of the bridegroom, served as best man. Groomsmen were Reid Hansen, Brian Beka, Ryan Otto, Kirk Davidson and Marc Langland.
The reception was held at the Plymouth County Fairgrounds.
Katy is a graduate of Creighton University in Omaha, Neb., where she earned a bachelor of science degree in exercise science and a doctorate in physical therapy. She is employed as a physical therapist at Floyd Valley Hospital in Le Mars.
Sam graduated from South Dakota State University with a bachelor of science degree in biology, and from Creighton University with a doctor of dental surgery degree. He is employed as an assistant dentist with Dr. James Jespersen in Rock Valley.
The couple took a wedding trip to Costa Rica and are at home in Rock Valley.