The Bergen County Prosecutor's Office says Soon Yae Kim of Fort Lee was hit near Main Street in Fort Lee around 9 a.m. Friday.
She was taken to Hackensack University Medical Center with internal injuries and injuries to her back, face and left arm, and she died there that night.
Fort Lee Police Capt. Roy Bortolus said it's still not clear whether the driver knew he had struck someone. He said no charges had been filed as of Sunday afternoon, though the investigation was ongoing.
The Coach USA bus was going from Fort Lee to Bergen Community College.