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Rancho Cucamonga hurricane guide

The City of Rancho Cucamonga's hazard mitigation plan says the city sits at the base of the San Gabriel Mountains and has a long history of flooding. The Rancho Cucamonga Fire District runs the city's emergency management and sandbag program. See the San Bernardino County page for county agencies.

Checked on October 10, 2026

Every phone number and web address on this page was checked against official sources on that date. Details can change, especially during a storm. Always follow instructions from the City of Rancho Cucamonga. In a life threatening emergency, call 911.

Official website: cityofrc.us

Emergency and information numbers

Service Number Notes
Emergency management office 909-477-2770 Office line. Not for emergencies.
Police non-emergency dispatch 909-941-1488 For police matters that are not emergencies. Open 24/7.

Official alerts and information

  • Sign Up for Emergency Alerts: The county's free alerts, listed by the city. Sign up before a storm. Website.
  • ReadyRC: The city's emergency management page. Website.

County services that cover Rancho Cucamonga

San Bernardino County manages evacuation zones, evacuation centers, and emergency alerts for everyone who lives in Rancho Cucamonga. The San Bernardino County guide has the full list of county numbers, radio stations, and recovery help.

  • Official list of open evacuation centers
  • Telephone Emergency Notification System (TENS): Free alerts by text, email, or phone. Sign up before a storm. Landlines are included automatically. To sign up by phone, call 909-356-3998 on weekdays 8:00 a.m. to 5:00 p.m. Website.
  • Ready SB County app: The county's free app with alerts, evacuation maps, and safety check-ins. Website.

Sources

Checked on October 10, 2026. If a number or address here is wrong, please tell us at Keith@KMyers.me.