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Interactive map

Lone Star Tick Awareness Map

Where Lone Star ticks are reported across the United States, drawn from published distribution data. Search your ZIP, drag to explore, and open any state or county for peak season, prevention, and what to do after a bite. These are educational awareness levels — not official surveillance, and not any individual's medical risk.

What the colours meanShow

Awareness level

How widely Lone Star ticks are reported in each state.

  • Low

    Not currently considered established here — few or no Lone Star tick reports in public data.

  • Emerging

    Reports are increasing at the edge of the documented range.

  • Established

    Inside the documented Lone Star tick range.

  • High Awareness

    Inside the documented range, and among the states with the most reported alpha-gal cases.

  • Limited public data

    No usable public data for this area — that is not the same as low risk.

These are educational awareness levels drawn from published tick-distribution data — not official surveillance, and not any individual's medical risk.

Tick presence does not equal disease risk

The presence of Lone Star ticks in an area does not mean a bite will transmit disease or cause alpha-gal syndrome. This map is a reminder to take prevention steps where ticks are active. For region-specific guidance, open your state page or contact your state health department.

Disclaimer: Awareness levels on this map are educational and based on publicly reported tick-distribution information. They should not replace official public health guidance from agencies like the CDC or your state health department, and they do not represent any individual's personal medical risk. See our sources.