At least one of the incidents was recorded on video.
Corona Police say vandals hit about 2 a.m. Saturday, June 29, on the 1100 block of Via Ixtapa; the 300 block of Via Mazatlan; and 1200 blocks of Stephanie Drive and Bridgeport Road.
Video posted on YouTube by an area resident shows someone climbing out of the vehicle and kicking the mailbox until it topples.
The vehicles are described as a black truck and silver car.
Anyone with information related to the case is asked to call Corona Police at (951) 736-2334.