Dean Sparks, 17, of Grove City, has been reported as an endangered runaway by the Grove City Police Division.
According to information from the police, Sparks was supposed to have spent the night at a friend's residence June 27, but when his parents checked there, he could not be located.
Sparks' parents have since learned he ran away with a girl, according to police.
On July 1, the girl was found in Columbus by her parents and the Columbus police, but Sparks reportedly ran off before he could be taken into custody.
Sparks is believed to be in the campus area of Columbus. He is 5 feet, 10 inches, weighs 154 pounds and has brown hair and green eyes.
Anyone with information about his whereabouts is asked to contact the Grove City Police at 614-277-1710.