Find local emergency-alert registration, assistance and county-linked evacuation tools across California.
58 guides with reviewed service links · Reviewed local guides
Highlighted counties have a reviewed service guide matching this selection. An agency may serve only a city or part of a county.
U.S. Census boundaries via U.S. Atlas · 2017 edition, simplified for display.
Showing 58 guides as a short list. Choose your county or type a city above to see each guide’s instructions, conditions and sources here.
Alameda county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Alpine county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Amador county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Butte county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Butte uses its upgraded emergency-alert programme. Review or create your own account so contact methods, language and locations are current.
Official information checked October 15, 2026 · Details & sources
Calaveras county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Colusa county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Contra Costa county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
The official CWS page currently asks new subscribers to email CWSstaff@so.cccounty.us or call 925-655-0111 during portal maintenance. Recheck the current notice before registering.
Official information checked October 15, 2026 · Details & sources
Del Norte county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →El Dorado county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Fresno county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Glenn county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Glenn moved from CodeRED to Glenn Alerts on Rave/Smart911. Use the current programme and follow its confirmation or account-registration instructions.
Official information checked October 15, 2026 · Details & sources
Humboldt county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Imperial county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Imperial’s registration requires confirming the subscription by text or email; the initial form alone does not activate the profile.
Official information checked October 15, 2026 · Details & sources
Inyo county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Kern county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Kings county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Lake county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Lake County warns that power, networks, device settings and other conditions can prevent delivery. Follow current official instructions and act to protect yourself if in immediate danger.
Official information checked October 15, 2026 · Details & sources
Lassen county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Los Angeles county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Use Alert LA County’s current opt-in programme. The county page links to Genasys; city-specific systems may offer additional alerts.
Official information checked October 15, 2026 · Details & sources
Madera county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Marin county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Mariposa county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Mendocino county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Merced county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Modoc county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Mono county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Monterey county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Napa county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Nevada county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Nevada County now points to Nevada County Alerts. Follow the current county link and keep profile information current.
Official information checked October 15, 2026 · Details & sources
Orange county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Placer county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Plumas county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Riverside county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Riverside recommends Alert RivCo plus Genasys Protect and notes that some cities also operate their own systems.
Official information checked October 15, 2026 · Details & sources
Sacramento county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →San Benito county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →San Bernardino county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →San Diego county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →San Francisco county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
San Francisco offers a ZIP-code text option in addition to an account. Review the city’s current page for all available channels.
Official information checked October 15, 2026 · Details & sources
San Joaquin county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →San Luis Obispo county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →San Mateo county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Santa Barbara county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Santa Clara county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Santa Clara’s current signup uses Everbridge Community and one-time verification codes. Use the current county Sign Up link and its step-by-step instructions.
Official information checked October 15, 2026 · Details & sources
Santa Cruz county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Shasta county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Sierra county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Siskiyou county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Solano county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Sonoma county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Stanislaus county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Sutter county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Tehama county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Trinity county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Tulare county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Tuolumne county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Ventura county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Yolo county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Yuba county programme guide. Local public safety agencies issue alerts. Use the official registration instructions and live tools for the places where you live, work or spend time.
Full guide, contact details & sources →Selected agencies, with sources checked individually. See all coverage and sources.