Alert Marin

Get alerts straight on your phone about current emergencies.

AlertMarin Emergency Notification Registration

New Emergency Notification System Upgrade

If you live, work or go to school in Marin County and are 18 and over, you may now register your cell phone or VoIP (voice over internet protocol) phone to receive emergency alerts sent by call, text, email, or smartphone application from the County of Marin.

Listed and unlisted/blocked Marin County landline phone numbers are already included in our emergency notification system. Cell phone and VoIP numbers are not included and will require your registration in our Self-Registration Portal.

The caller ID for AlertMarin is 415-473-6376. Many smartphones allow you to create "favorites" and set preferences for those callers. Consider making AlertMarin a favorite on your mobile device. 

Help us get the word out. Download our "Get Emergency Alerts" poster today !

Register Multiple Marin Locations

Perhaps you live in Marin, but work outside the County. Or you work and go to school in Marin, but live outside the County. You may list up to five addresses per profile where you wish to receive notifications such as home, work, child’s school, or relatives home. Your profile may contain up to 2 SMS (text) devices, two email addresses, a TTY device, four phone numbers (including a mobile phone) and a work phone. You may also download the Everbridge application from your Apple iOS or Android device.

Be Sure You are Registered to Get the Emergency Call, Text & Email

Emergency officials use the AlertMarin Emergency Notification System to deliver incident-specific information or potentially life-saving instruction to the precise geographic area(s) affected. Emergency situations may include:

  • flooding, wildfires, and subsequent evacuations;
  • public safety incidents including crimes that affect your neighborhood;
  • and post-disaster information about shelters, transportation, or supplies.

To register for any city/area listed below, please go to Alert Marin Terms and Conditions below.

  • Belvedere
  • Corte Madera
  • Fairfax
  • Larkspur
  • Mill Valley
  • Novato
  • Ross
  • San Anselmo
  • San Rafael
  • Sausalito
  • Tiburon
  • Unincorporated Areas

Alert Marin Terms and Conditions

To proceed with the registration process, agree to our terms and conditions and click on the link below.

Please read our terms and conditions carefully before using our website.

Your use of the Marin County AlertMarin Emergency Notification System hereinafter ALERTMARIN, is subject to the terms and conditions contained herein. Please read these terms and conditions carefully as use of ALERTMARIN constitutes acceptance of these terms and conditions.

The Marin County Sheriff’s Office provides ALERTMARIN as an informational resource for public use. ALERTMARIN is made available to the County of Marin residents and businesses as a supplement to, and not a replacement for, existing public safety warning and information notification systems such as television and radio. Your use of and agreement to receive notifications from ALERTMARIN does not create any duty on the part of the Marin County Sheriff’s Office and the Marin County Sheriff’s Office is not responsible for any action you may take as a result of a notification you receive through ALERTMARIN.


The Marin County Sheriff’s Office, its officers, employees, agents and assigns make no warranty, express or implied, and assume no legal liability or responsibility for the accuracy, completeness or usefulness of any information provided by ALERTMARIN. The Marin County Sheriff’s Office, its officers, employees, agents and assigns will not be liable for any damage or injury caused by the use of ALERTMARIN. ALERTMARIN may-be temporarily unavailable from time to time due to maintenance or malfunction of computer equipment.

The user assumes all risks associated with the use of ALERTMARIN. In no event shall the Marin County Sheriff’s Office, its officers, employees or agents be liable for any direct, indirect, consequential, special, incidental, or punitive damages, or any other damages, losses, costs, or other expenses of any kind whatsoever resulting from, caused by, or arising out of or in connection with ALERTMARIN or your use thereof, its content or services, or any other cause whatsoever, including, without limitation, losses related to the inability to use the service, loss of data, loss of profits or any errors, omissions or defects in ALERTMARIN content.

By agreeing to these terms and conditions, you are authorizing the Marin County Sheriff’s Office to send you communications via text (SMS) message, smartphone application, electronic mail and/or telephone. All applicable charges for such communications shall apply. The Marin County ALERTMARIN is intended solely for the use of individuals who live, work or go to school within the boundaries of the County of Marin. Minors are expressly forbidden to use ALERTMARIN. Messages will be sent based on the address you provide to the phone numbers and email addresses you provide. YOU MAY NOT REGISTER ANY PHONE NUMBERS OR EMAIL ADDRESSES THAT DO NOT BELONG TO YOU. YOU ARE SOLELY RESPONSIBLE FOR MAINTAINING THE ACCURACY OF THE INFORMATION YOU PROVIDE. The Marin County Sheriff’s Office may remove any contact information or account it believes, in its sole opinion, to be fraudulent or otherwise inappropriate. 

NOTE: By registering you are automatically signed up for Emergency Notifications

Do you affirm that you are at least 18 years of age and agree to the terms and conditions above?

Yes, I affirm.