Are ticks a problem in San Diego County?

There have been 43 tick reports near San Diego County, CA, with 0 bites and 43 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 San Diego County?

The most commonly reported tick species in San Diego County include Unidentified, Deer Tick. Each species carries different disease risks — see our species guide for identification help.

Tick Map

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Ticks in San Diego County, CA

43 tick reports from the San Diego County, CA area.

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Total Reports

Sightings

Bites

Species Found in San Diego County

Unidentified42 (98%)

Deer Tick1 (2%)

Risk: High — carries Lyme disease

Tick Safety in San Diego County

Ticks are active in San Diego County, 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