During the incidents, which began in May, gunfire was directed towards homes, businesses, vehicles, and signs.
The shootings have occurred in Middletown Township, Bethel Township, Concord Township and Chester Heights Borough.
Injuries were not reported and authorities are looking into whether the shootings are at all related.
No suspects have been named but police released a photo of a vehicle caught on surveillance video leaving one of the scenes.
Anyone with information on these incidents is asked to contact Pennsylvania State Police at 484-840-1000.