Campbell's Iowa visit represented his first to one of his top schools. He is scheduled to visit the other four in the next two-three weeks.
"I really don't want to speed it up, but I really don't want to prolong it, either," Campbell said of his choice. "After I visit all of the schools, I'll probably make my decision. I'll absolutely make one before school starts. I don't want recruiting interfering with my season."
While he stars at running back for Collier High in Naples and Scout.com rates him as the 49th best ball carrier in the 2011 Class, Iowa is recruiting Campbell as a corner.
"They offered me before coming down to see me this spring," Campbell said of the Hawkeyes. "They've told me they like my attitude and my background."
Campbell was sold on the Iowa coaches before his visit, but he felt even better about them by the time he exited Iowa City.
"Coach (Kirk) Ferentz was great," Campbell said. "Coach (Eric) Johnson, Coach (Phil) Parker, Coach (Rich) Kaczenski, they're all great. The players were the thing that really opened my eyes, though. I really got a good vibe from them.
"I guess the other coaches and players told Coach Ferentz that they felt good about me. He told me that he feels good about me, too."
Campbell landed in Iowa last Wednesday. He spent two days in Des Moines running the 110-meter hurdles at the Drake Stadium at a Junior National event.
"That was really good," Campbell said. "That was the first time I'd been there and I ran well."
Campbell then stayed in Iowa City for two days over the weekend.
"I got to see the academic buildings, the campus and the football facilities," Campbell said. "I've seen other schools and Iowa's facilities are right up there. The second day we saw a lot of the town away from campus. It was all great."
Overall, Campbell said he "loved" his visit.
"I'm glad I gave it a chance," he said. "The coaches were great and so were the people up there. I've heard my friends, family and other coaches say Iowa is just a bunch of cornfields. I see that as a positive thing."