Are ticks a problem in San Mateo?

There have been 37 tick reports near San Mateo, CA, with 0 bites and 37 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 Mateo?

The most commonly reported tick species in San Mateo 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 Mateo, CA

37 tick reports from the San Mateo, CA area.

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Total Reports

Sightings

Bites

Species Found in San Mateo

Unidentified36 (97%)

Deer Tick1 (3%)

Risk: High — carries Lyme disease

Tick Safety in San Mateo

Ticks are active in San Mateo, CA and surrounding areas. The most commonly reported species is the Unidentified, making up 97% 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