Head coach Travis Ford's signing class is ranked as the 15th best in the nation, even though it includes just two players – Johnson and Nash.
"Karron has been working hard to get to the Division I level," said OSU associate head coach Butch Pierre, the primary recruiter for Johnson. "He will be able to bring us some rebounding and athleticism in a player that can be a major impact for our program from day one. He will be a huge complement to LeBryan Nash."
Johnson is named the Preseason National Junior College Player of the Year by The Sporting News. He originally signed with Oklahoma State two years ago before his senior season at Laurinburg Prep in Laurinburg, N.C., where he was ranked as the No. 72 prospect in the Class of 2009.
"To be honest, before I left high school I already knew Oklahoma State was the place for me," Johnson told GoPokes.com. "I've always felt good about Oklahoma State and I've always wanted to go to Oklahoma State. So it's really kind of the same feeling that I've had from the beginning."
Johnson was a third-team National Junior College Athletic Association All-American as a freshman at Moberly (Mo.) Area Community College as a freshman, averaging 21.6 points and eight rebounds per game.
He currently plays at Midland College, which is the No. 1-ranked junior college team in the nation.
"Playing for Midland College and (head coach) Ross Hodge will get Karron prepared for this level," Pierre said. "They have a regimented training program and they're the No. 1 ranked junior college team in the nation. There's a reason for that. Going through that program is going to help him develop some good habits. He already has the tools to be able to step in right away and help this program as it heads in the right direction."
Oklahoma State will become the sixth school in six years for Johnson, who is now attending Midland (Texas) junior college after spending the 2009-10 school year at Moberly (Mo.) Area Community College. He attended three high schools – Laurenburg Prep, Mount Zion Academy in Durham, N.C., and the Patterson School in Patterson, N.C.