A playground security system comprises a power supply and a monitoring station. The monitoring station comprises a camera, a light and/or an audio deterrent device which are electrically connected to the power supply. The monitoring station can be contained in a post; and the post is part of a playground structure or can be a stand alone post. The audio deterrent device emits signals in a frequency range that is bothersome to humans between the ages of about 13 to about 25 years. The audio deterrent device and light are activated by a motion sensor. Further, the system includes a dusk-to-dawn sensor which also controls the audio deterrent device and the light. The camera can be in an “always-on” mode and can be adapted to transmit signals containing visual or audio-visual information. The camera signals can be stored and viewed remotely from the playground.