AlertOC is a mass notification system designed to keep Orange County residents and businesses informed of important information during emergency events. Examples of use would include disaster notifications, evacuation notices, public health emergencies, public safety emergencies, and/or any emergency information as defined by the City. 



By registering with AlertOC, time-sensitive voice messages from the County or City of Yorba Linda can be sent to your home, cell, or business phone. Text messages may also be sent to:

  • Cell phones
  • Email accounts
  • Hearing impaired receiving devices

Residents and businesses wishing to receive emergency notifications from the City of Yorba Linda, can simply register on the AlertOC website.