Are ticks a problem in Ca?

There have been 194 tick reports near Ca, CA, with 3 bites and 191 sightings. The most common species reported is the Unidentified. Check the Tick Map for the latest 2026 tick activity.

What kind of ticks are in Ca?

The most commonly reported tick species in Ca include Unidentified, American Dog Tick, Lone Star Tick. Each species carries different disease risks — see our species guide for identification help.

Tick Map

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Ticks in Ca, CA

194 tick reports from the Ca, CA area. 2% of reports involve bites.

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194

Total Reports

191

Sightings

Bites

Species Found in Ca

Unidentified191 (98%)

American Dog Tick2 (1%)

Risk: Moderate — Rocky Mountain spotted fever

Lone Star Tick1 (1%)

Risk: Moderate — Alpha-gal syndrome

Tick Safety in Ca

Ticks are active in Ca, CA and surrounding areas. The most commonly reported species is the Unidentified, making up 98% of reports.

✓Wear light-colored clothing when walking in wooded areas or tall grass
✓Use EPA-registered tick repellent (DEET, picaridin, or IR3535)
✓Do a full-body tick check after being outdoors — especially behind ears, hairline, and waistband
✓Shower within 2 hours of coming inside
✓If bitten, remove the tick with fine-tipped tweezers and monitor for symptoms for 30 days