"I sat down with my family, and with Coach (Kirk) Ferentz and my coaches," Prater said in a university release. "I weighed the pros and cons, and I am remaining at Iowa for my senior season. I look forward to playing a vital role in whatever capacity is necessary next season."
Prater, an Omaha native, intercepted four passes last fall. He also contributed 10 passes defended, six break-ups and 68 tackles.
"I was very pleased to learn of Shaun Prater's decision to return to the team for his senior season," Ferentz said in the release. "Shaun has played very good football for us the past few years and I expect him to continue growing both as a player and team leader next season."
National Football Post NFL Draft analyst Wes Bunting tweeted on Monday that he felt Prater could go as high as the third round if he ran well for scouts.
Prater was one of three Iowa juniors who asked the NFL draft evaluation committee to supply him with estimates on where he might be selected. Safety Tyler Sash and wide receiver Marvin McNutt also inquired.
Saturday is the final day for underclassmen to enter their names into the draft pool.