The Florida Highway Patrol confirmed to local television station WJXT that Fournette was not at fault after his car was rear-ended as part of a three-vehicle collision near the Dames Point Bridge.
"Leonard is OK and was able to drive home," the team said in a statement. "Appreciate everyone that has reached out to check on him."
Fournette overcame a late second-quarter ankle injury in Jacksonville's 45-42 victory over the Pittsburgh Steelers in an AFC divisional-round game on Sunday.
The 22-year-old finished with 109 yards rushing and three touchdowns for the Jaguars, who will face the New England Patriots on Sunday (3:05 p.m. ET) in their first appearance in the AFC Championship Game since the 1999 season.
Fournette rushed for 1,040 yards and nine touchdowns this season and also had 302 yards receiving.