The victim was taken to Hackensack University Medical Center after being struck around 12:30 p.m. at the intersection of Main and Liberty streets, Detective Lt. Ronald Klein said.
The driver remained at the scene, he said.
Police were interviewing witnesses.
The Bergen County Sheriff's Bureau of Criminal Identification collected evidence.
Main Street between Route 46 and Liberty Street remained temporarily closed.
Click here to follow Daily Voice Hackensack and receive free news updates.