Lone Star Tick Map
Where Lone Star ticks are reported in the U.S. Tap your state or search your ZIP code to see what it means for you.
- Rarely reported
- Spreading
- Found here
- Alpha-gal hotspot
- Limited public data
Drag to pan, or focus the map and use the arrow keys. Press plus and minus to zoom, and 0 to return to the whole country. Tab moves to a state; the arrow keys then step between states and Enter opens one.
Showing the whole United States. 51 states in view.
Arrows pan · +/− zoom · 0 resets
States in view
51 in view
- AlabamaFound here
- AlaskaRarely reported
- ArizonaRarely reported
- ArkansasAlpha-gal hotspot
- CaliforniaRarely reported
- ColoradoRarely reported
- ConnecticutSpreading
- DelawareAlpha-gal hotspot
- District of ColumbiaFound here
- FloridaFound here
- GeorgiaFound here
- HawaiiRarely reported
- IdahoRarely reported
- IllinoisAlpha-gal hotspot
- IndianaAlpha-gal hotspot
- IowaFound here
- KansasAlpha-gal hotspot
- KentuckyAlpha-gal hotspot
- LouisianaFound here
- MaineSpreading
- MarylandAlpha-gal hotspot
- MassachusettsSpreading
- MichiganSpreading
- MinnesotaRarely reported
- MississippiAlpha-gal hotspot
- MissouriAlpha-gal hotspot
- MontanaRarely reported
- NebraskaFound here
- NevadaRarely reported
- New HampshireSpreading
- New JerseyFound here
- New MexicoRarely reported
- New YorkFound here
- North CarolinaAlpha-gal hotspot
- North DakotaRarely reported
- OhioFound here
- OklahomaAlpha-gal hotspot
- OregonRarely reported
- PennsylvaniaFound here
- Rhode IslandSpreading
- South CarolinaFound here
- South DakotaSpreading
- TennesseeAlpha-gal hotspot
- TexasFound here
- UtahRarely reported
- VermontRarely reported
- VirginiaAlpha-gal hotspot
- WashingtonRarely reported
- West VirginiaFound here
- WisconsinSpreading
- WyomingRarely reported
What each colour meansShowHide
Where they live
How widely Lone Star ticks are reported in each state.
Rarely reported
Few or no Lone Star tick reports in public data. Other ticks still live here.
Spreading
Reports are increasing at the edge of the Lone Star tick's range.
Found here
Inside the Lone Star tick's documented range.
Alpha-gal hotspot
Inside the range, and among the states where CDC found the highest rates of suspected alpha-gal cases.
Limited public data
No usable public data for this area. That is not the same as low risk.
Our summary of published tick data. Not official surveillance, and not your personal medical risk. How we rate places
Finding ticks in an area doesn’t mean a bite will make you ill. The map is a prompt to use prevention where ticks live. It summarises published tick data; it is not official surveillance or medical advice. See our sources.