"I knew that I wanted to go to Auburn after taking my visit there this weekend," he told Inside the Auburn Tigers. "I wanted to get home and talk to my family about my decision and I am excited about it."
"I really felt comfortable there with the players, coaches and everybody I met," he said. "It is really like a family there and that is important to me.
"Auburn has great tradition and I want to be a part of that," he added. "I want to be a part of the group that gets the program back to the top, and I want to be a part of the group that starts beating Alabama again."
As a senior Harding made 105 tackles as his Sante Fe High School team finished with a 10-2 record in 2012. As a junior he collected 71 tackles.
"I like these coaches a lot," Harding said about Auburn. "They are real with you. They know what they are talking about. They've coached a lot of great players. They have put players in the league and I like that a lot."
Harding and wide receiver Tony Stevens are Auburn's two most recent visits. Stevens, a wide receiver from Evans High School in Orlando, Fla.. also committed to the Tigers on Sunday.
With Auburn switching to a 4-2-5 defense this season, safeties are a high priority for the Tigers. Harding said that is one of the reasons he chose the Tigers, noting he believes he will have a chance to contribute as a freshman. "It is a great opportunity for me," he said.