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Find evacuation zones and official updates

Find county-linked evacuation tools, official emergency information and the meaning of warnings and orders.

Before you start

  • For a life-threatening emergency, call 9-1-1 and follow instructions from local public safety officials.
  • Register for local alerts where you live, work or regularly spend time. Keep your contact methods and registered addresses current, including after a programme changes platforms.
  • Choose a county to find registration guidance and official evacuation tools. Check the official live sources for current conditions, warnings and orders.
  • Local subscriptions, Wireless Emergency Alerts and earthquake warnings work differently. Check device settings and use more than one official information channel.
  • Look for current access notices and assistance options. Registration requirements, language options and support contacts vary by programme.

58 guides with reviewed service links · Reviewed local guides

Choose a county on the map

Highlighted counties have a reviewed service guide matching this selection. An agency may serve only a city or part of a county.

California58 counties
California county mapChoose a county to open its directory. Use the county search and list for smaller counties.Alameda County: open directoryAlpine County: open directoryAmador County: open directoryButte County: open directoryCalaveras County: open directoryColusa County: open directoryContra Costa County: open directoryDel Norte County: open directoryEl Dorado County: open directoryFresno County: open directoryGlenn County: open directoryHumboldt County: open directoryImperial County: open directoryInyo County: open directoryKern County: open directoryKings County: open directoryLake County: open directoryLassen County: open directoryLos Angeles County: open directoryMadera County: open directoryMarin County: open directoryMariposa County: open directoryMendocino County: open directoryMerced County: open directoryModoc County: open directoryMono County: open directoryMonterey County: open directoryNapa County: open directoryNevada County: open directoryOrange County: open directoryPlacer County: open directoryPlumas County: open directoryRiverside County: open directorySacramento County: open directorySan Benito County: open directorySan Bernardino County: open directorySan Diego County: open directorySan Francisco County: open directorySan Joaquin County: open directorySan Luis Obispo County: open directorySan Mateo County: open directorySanta Barbara County: open directorySanta Clara County: open directorySanta Cruz County: open directoryShasta County: open directorySierra County: open directorySiskiyou County: open directorySolano County: open directorySonoma County: open directoryStanislaus County: open directorySutter County: open directoryTehama County: open directoryTrinity County: open directoryTulare County: open directoryTuolumne County: open directoryVentura County: open directoryYolo County: open directoryYuba County: open directory
County directory Reviewed service guides available
Map for browsing; agency service areas may differ.
Map source

U.S. Census boundaries via U.S. Atlas · 2017 edition, simplified for display.

Shared official instructions

These links and rules are shared by the county guides. Choose a county for its listed locations and full guide.

Understand evacuation orders, warnings and shelter-in-place (opens in a new tab)

Shared California preparedness guidance. Review the state instructions and the current local programme.

Requirements & sources · checked October 15, 2026
Shared California preparedness guidance — order

An evacuation order directs people to leave now. Follow the issuing authority’s current instructions.

Checked October 15, 2026

Official guidance (opens in a new tab)
Evacuation Order: Immediate threat to life. This is a lawful order to leave now. The area is lawfully closed to public access.
Shared California preparedness guidance — warning

A warning signals a potential threat. State guidance tells people needing extra time, and those with pets or livestock, to leave now.

Checked October 15, 2026

Official guidance (opens in a new tab)
Evacuation Warning: Potential threat to life and or property. Those who require additional time to evacuate, and those with pets and livestock, should leave now.
Shared California preparedness guidance — shelter

Shelter in place means go indoors and follow current instructions until further direction.

Checked October 15, 2026

Official guidance (opens in a new tab)
Shelter in Place: Go indoors. Shut and lock doors and windows. Prepare to stay inside until further notice and or contacted by emergency personnel for additional direction.

Listos California / Cal OES · Listos California — local alerts and warning terms (opens in a new tab)

Understanding Common Alerts
County government · Alameda

Alameda — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Alameda (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Alameda County · Alameda — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Current Evacuation Zone Status

Saved evidence: 47bb55c85c858b85 · Agent source review

Full guide, contact details & sources →
County government · Calaveras

Calaveras — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Calaveras (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Calaveras County · Calaveras — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Visit Genasys Protect to find your zone

Saved evidence: 85f7c249e7859eee · Agent source review

Full guide, contact details & sources →
County government · Contra Costa

Contra Costa — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Contra Costa (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Contra Costa County · Contra Costa — current emergency alert current-signup (opens in a new tab)

Official programme entry / exact actual URL

FIND YOUR ZONE

Saved evidence: 90bd11246293a239 · Agent source review

Full guide, contact details & sources →
County government · Humboldt

Humboldt — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Humboldt (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Humboldt County · Humboldt — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Evacuation Mapping

Saved evidence: e67b9e663d875a39 · Agent source review

Full guide, contact details & sources →
County government · Lake

Lake — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Lake (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Lake County · Lake — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

LakeCoAlerts is the Lake County Sheriff's Office emergency notification system.

Saved evidence: 105e982e7c8d0881 · Agent source review

Full guide, contact details & sources →
County government · Marin

Marin — Emergency alert guide

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.

Shared official instructions ↑

Marin public emergency portal (opens in a new tab)Official instructions

View current incident information and official instructions on the county emergency portal.

Source checked October 15, 2026

Marin County · Marin — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Public Emergency Portal

Saved evidence: afa26814431789c8 · Agent source review

Full guide, contact details & sources →
County government · Mendocino

Mendocino — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Mendocino (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Mendocino County · Mendocino — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

KnowYourZoneMendo(opens in a new tab)

Saved evidence: 0df03e87faa1a124 · Agent source review

Full guide, contact details & sources →
County government · Napa

Napa — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Napa (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Napa County · Napa — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Genasys Protect (Zonehaven)

Saved evidence: 1c02d491d70aaad3 · Agent source review

Full guide, contact details & sources →
County government · Nevada

Nevada — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Nevada (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Nevada County · Nevada — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

know your Zone

Saved evidence: 6427de0e8555568a · Agent source review

Full guide, contact details & sources →
County government · Plumas

Plumas — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Plumas (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Plumas County · Plumas — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Wildfire Evacuation Maps

Saved evidence: bc0add3645e6bde9 · Agent source review

Full guide, contact details & sources →
County government · Riverside

Riverside — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Riverside (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Riverside County · Riverside — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Evacuations

Saved evidence: 5112576cdcb29121 · Agent source review

Full guide, contact details & sources →
County government · Sacramento

Sacramento — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Sacramento (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Sacramento County · Sacramento — emergency alert signup-info (opens in a new tab)

Official programme entry / exact actual URL

​​Evacuation Zone Maps

Saved evidence: 9476c3eca8aa4a56 · Agent source review

Full guide, contact details & sources →
County government · San Benito

San Benito — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — San Benito (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

San Benito County · San Benito — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Click here to know your zone!

Saved evidence: b1407e9dbfd45031 · Agent source review

Full guide, contact details & sources →
County government · San Joaquin

San Joaquin — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — San Joaquin (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

San Joaquin County · San Joaquin — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Emergency Find out now if your location is under evacuation. Get clear information and essential resources for current active incidents.

Saved evidence: 38df00cd0548f3d7 · Agent source review

Full guide, contact details & sources →
County government · San Luis Obispo

San Luis Obispo — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — San Luis Obispo (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

San Luis Obispo County · San Luis Obispo — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Evacuation Zones / Protective Action Zones

Saved evidence: c78adc6daf967a5b · Agent source review

Full guide, contact details & sources →
County government · San Mateo

San Mateo — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — San Mateo (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

San Mateo County · San Mateo — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Genasys / Zonehaven (Evacuation Zone Maps)

Saved evidence: 06a68808af5425ca · Agent source review

Full guide, contact details & sources →
County government · Santa Barbara

Santa Barbara — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Santa Barbara (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Santa Barbara County · Santa Barbara — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Emergency Zones Map

Saved evidence: 590ebadbd01c93a6 · Agent source review

Full guide, contact details & sources →
County government · Santa Clara

Santa Clara — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Santa Clara (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Santa Clara County · Santa Clara — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Genasys Protect

Saved evidence: c8975227f6e8cff7 · Agent source review

Full guide, contact details & sources →
County government · Santa Cruz

Santa Cruz — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Santa Cruz (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Santa Cruz County · Santa Cruz — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Evacuations

Saved evidence: 692f2fd3c1588b89 · Agent source review

Full guide, contact details & sources →
County government · Shasta

Shasta — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Shasta (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Shasta County · Shasta — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Genasys Protect

Saved evidence: be1aeaa232abd094 · Agent source review

Full guide, contact details & sources →
County government · Sierra

Sierra — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Sierra (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Sierra County · Sierra — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Genasys Protect

Saved evidence: 654187e860532eaf · Agent source review

Full guide, contact details & sources →
County government · Siskiyou

Siskiyou — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Siskiyou (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Siskiyou County · Siskiyou — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Genasys Protect

Saved evidence: 978ae8cec5cd5a91 · Agent source review

Full guide, contact details & sources →
County government · Sonoma

Sonoma — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Sonoma (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Sonoma County · Sonoma — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

SoCoAlert is a free emergency notification service

Saved evidence: 98bfb45e0ea71993 · Agent source review

Full guide, contact details & sources →
County government · Tehama

Tehama — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Tehama (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Tehama County · Tehama — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Tehama Map

Saved evidence: 67e74a2a7757a45b · Agent source review

Full guide, contact details & sources →
County government · Tulare

Tulare — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Tulare (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Tulare County · Tulare — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Find Your Zone

Saved evidence: fe5521bd4ecbbe96 · Agent source review

Full guide, contact details & sources →
County government · Yolo

Yolo — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Yolo (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Yolo County · Yolo — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Evacuation Zones

Saved evidence: a9b074314886b7d2 · Agent source review

Full guide, contact details & sources →
County government · Yuba

Yuba — Emergency alert guide

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.

Shared official instructions ↑

Official evacuation zones or emergency information — Yuba (opens in a new tab)Official instructions

Open the county-linked live tool or instructions. Search the relevant address and follow current official warnings and orders. CountyWiki does not display active evacuation boundaries.

Source checked October 15, 2026

Yuba County · Yuba — local emergency alert instructions (opens in a new tab)

Official programme entry / exact actual URL

Evacuation Zone

Saved evidence: 45e50bb9632c88cf · Agent source review

Full guide, contact details & sources →