Living five minutes away from Rutgers, however, Barnwell said he has the strongest relationship with his home-state school.
"I love it there," Barnwell said. "It's crazy. Their fans are crazy. They play together as one. The coaches have them prepared and they're just a team. … The uniforms have been hot."
Rutgers has a strong history recruiting Piscataway.
"It makes it easier," Barnwell said. "They all come back and check in on us when they can. It's just great to see guys from Piscataway on the next level. If they can do it, I can do it."
Florida, which verbally offered Barnwell during the summer, does not have the same level of contact with Barnwell, he said.
"Rutgers and Florida are both talking to me all the time, but Rutgers probably does more," Barnwell said. "I love both of them."
For Piscataway, Barnwell plays primarily quarterback and cornerback, but is being recruited at almost every skill position, he said.
"I honest don't know what position — running back, receiver, corner, whatever," Barnwell said. "With Rutgers and Florida, I just know they want me.
An all-state cornerback as a sophomore, Barnwell said that is where he would project himself at the next level.
Against Sayreville, Barnwell logged six tackles and an interception.
"I think I'll end up at corner in college, so I'm always happy to put up a big performance. I think a lot of people don't realize how physical I am. That's something I'm working on.