IMPORTANT UPDATE, RED FLAG WARNING & INTERMITTENT POWER OUTAGES:  Tuesday, Nov. 13, 2018 - 10:20 am - There are NO current emergencies in the City of San Marcos. With high Santa Ana winds and red flag warnings in place through Wednesday, Nov. 14, residents can expect intermittent power outages throughout San Marcos and County of San Diego as SDG&E takes steps to keep communities safe from wildfire. Follow San Diego Gas & Electric and visit for the latest updates. To prepare, San Marcos Fire Department and the County of San Diego are recommending residents take a “Ready, Set, Go!” approach for peak fire season. To learn how you can prepare, visit

Register an Alarm System

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All San Marcos residents and businesses with an alarm system are required to register their device for public safety purposes with the city. 

By completing this five-minute form, your alarm device will be registered with the City of San Marcos. 

For more information or questions about alarm registration, please contact Crime Prevention Division at (760) 744-1050, ext. 3111

Please check one:
Please check one:
Alarm User Name:
Alarm User Address
Alarm User Telephone Number
Mailing Address (if different from above)
Alarm Monitoring Company
Alarm Monitoring Company Telephone Number
Please list three names, addresses and phone numbers of persons who may secure premises on a 24-hour basis:
  1. To receive a copy of your submission, please fill out your email address below and submit.