The accident happened around 9:14 p.m. along the 700 block of the Fruitville Pike in Penn Township.
The victim, 63-year-old Suzanne Cassell, died at the scene.
According to police reports, Cassell was struck by a westbound car driven by Elizabeth Randler, 22, of Manheim.
Randler was taken to the hospital for treatment, police said.
The crash remains under investigation.