Are ticks a problem in Williamson County?

There have been 15 tick reports near Williamson County, IL, with 0 bites and 15 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 Williamson County?

The most commonly reported tick species in Williamson 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 Williamson County, IL

15 tick reports from the Williamson County, IL area.

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Total Reports

Sightings

Bites

Species Found in Williamson County

Unidentified13 (87%)

Deer Tick2 (13%)

Risk: High — carries Lyme disease

Tick Safety in Williamson County

Ticks are active in Williamson County, IL and surrounding areas. The most commonly reported species is the Unidentified, making up 87% 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