Lone Star Tick & Alpha-Gal Risk by State

Lone Star ticks are established across much of Alabama within the southeastern range.

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Lone Star ticks are not established in Alaska based on available surveillance data.

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Lone Star ticks are rare or not established in Arizona based on public surveillance.

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Arkansas is within the established Lone Star tick range and among the U.S. areas with the highest reported alpha-gal awareness.

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Lone Star ticks are rare or not established in California based on available surveillance data.

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Lone Star ticks are rare or not established in Colorado based on public surveillance.

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Lone Star ticks are reported and appear to be expanding along coastal and southern Connecticut.

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Delaware is within the established Lone Star tick range and among the highest reported AGS-awareness areas in the mid-Atlantic.

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Washington, D.C. sits within the mid-Atlantic Lone Star tick range, surrounded by high-awareness Maryland and Virginia.

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Lone Star ticks are established across much of Florida, with longer active seasons due to climate.

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Georgia is within the established Lone Star tick range and among the most reported states for alpha-gal awareness.

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Lone Star ticks are not established in Hawaii based on available surveillance data.

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Lone Star ticks are rare or not established in Idaho based on public surveillance.

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Lone Star ticks are established in parts of Illinois, with the highest alpha-gal awareness in the southern counties.

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Lone Star ticks are established in parts of Indiana, with greater alpha-gal awareness in the southern counties.

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Lone Star ticks are reported in parts of Iowa near the midwestern edge of the range.

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Lone Star ticks are established across eastern Kansas, which is within the high alpha-gal awareness region.

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Kentucky is within the established Lone Star tick range and among the U.S. areas with the highest reported alpha-gal awareness.

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Lone Star ticks are established across much of Louisiana within the Gulf Coast range.

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Lone Star ticks are reported in southern coastal Maine near the northeastern edge of the range.

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Maryland is within the established Lone Star tick range and among the highest reported AGS-awareness areas in the mid-Atlantic.

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Lone Star ticks are reported and expanding in parts of Massachusetts, especially coastal areas and the islands.

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Lone Star ticks are reported in parts of Michigan near the expanding upper-midwestern edge.

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Lone Star tick establishment in Minnesota is limited, but CDC detected moderate-to-high numbers of suspected AGS cases in some counties.

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Mississippi is within the established Lone Star tick range and among the highest reported alpha-gal awareness areas.

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Missouri has a long-documented Lone Star tick presence and ranks among the highest reported alpha-gal awareness states.

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Lone Star ticks are rare or not established in Montana based on public surveillance.

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Lone Star ticks are reported in eastern Nebraska near the western-midwestern edge of the range.

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Lone Star ticks are rare or not established in Nevada based on public surveillance.

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Lone Star ticks are reported in parts of New Hampshire near the northeastern edge of the range.

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Lone Star ticks are established across much of New Jersey.

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Lone Star ticks are rare or not established in New Mexico based on public surveillance.

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Lone Star ticks are established downstate — especially on Long Island — where alpha-gal awareness is high; presence is more limited upstate.

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North Carolina is a well-documented Lone Star tick region and among the highest reported alpha-gal awareness states.

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Lone Star ticks are rare or not established in North Dakota based on public surveillance.

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Lone Star ticks are established in parts of Ohio, with expanding records especially in the south.

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Oklahoma is within the established Lone Star tick range and among the highest reported alpha-gal awareness states.

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Lone Star ticks are rare or not established in Oregon based on public surveillance.

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Lone Star ticks are established in southern and southeastern Pennsylvania, with reported expansion westward.

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Lone Star ticks are reported and expanding in coastal Rhode Island near the northeastern edge of the range.

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South Carolina is within the established Lone Star tick range with high alpha-gal awareness across the Southeast.

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Lone Star ticks are rare or not established in South Dakota based on public surveillance.

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Tennessee is within the established Lone Star tick range and among the highest reported alpha-gal awareness states.

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Lone Star ticks are widely reported across the eastern and central portions of Texas.

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Lone Star ticks are rare or not established in Utah based on public surveillance.

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Lone Star tick presence in Vermont is limited or under-documented based on public surveillance.

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Virginia is a well-documented Lone Star tick state and among the highest reported alpha-gal awareness areas in the U.S.

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Lone Star ticks are rare or not established in Washington based on public surveillance.

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Lone Star ticks are established across much of West Virginia within the Appalachian mid-Atlantic range.

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Lone Star tick establishment in Wisconsin is limited, but CDC detected moderate-to-high numbers of suspected AGS cases in some counties.

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Lone Star ticks are rare or not established in Wyoming based on public surveillance.

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