Investigators say the teen, Summer Ristich, was last seen leaving her home in the 100 block of East Partridge Lane sometime between 6:30 a.m. and 10:30 a.m. on Sunday.
Police say Ristich may be on her way to Chicago with an ex-boyfriend. They may be travelling in a gray Dodge pickup truck with an Illinois registration.
Ristich is described as a 5'3" tall, 115 pounds with brown eyes and red hair.
Anyone who has seen Ristich or has information concerning her whereabouts is asked to call the Cherry Hill Police Department's 24 hour phone line at 856-488-7828.