States Without Ticks 2025

State
Brown Dog Tick
American Dog Tick
Blacklegged Tick
Lone Star Tick
Alabama Flag
AlabamaPresentPresentPresentPresent
Arkansas Flag
ArkansasPresentPresentPresentPresent
California Flag
CaliforniaPresentPresent
Connecticut Flag
ConnecticutPresentPresentPresentPresent
Delaware Flag
DelawarePresentPresentPresentPresent
District of Columbia Flag
District of ColumbiaPresentPresentPresentPresent
Florida Flag
FloridaPresentPresentPresentPresent
Georgia Flag
GeorgiaPresentPresentPresentPresent
Illinois Flag
IllinoisPresentPresentPresentPresent
Indiana Flag
IndianaPresentPresentPresentPresent
Iowa Flag
IowaPresentPresentPresentPresent
Kansas Flag
KansasPresentPresentPresentPresent
Kentucky Flag
KentuckyPresentPresentPresentPresent
Louisiana Flag
LouisianaPresentPresentPresentPresent
Maine Flag
MainePresentPresentPresentPresent
Maryland Flag
MarylandPresentPresentPresentPresent
Massachusetts Flag
MassachusettsPresentPresentPresentPresent
Michigan Flag
MichiganPresentPresentPresent
Minnesota Flag
MinnesotaPresentPresentPresent
Mississippi Flag
MississippiPresentPresentPresentPresent
Missouri Flag
MissouriPresentPresentPresentPresent
Montana Flag
MontanaPresentPresent
Nebraska Flag
NebraskaPresentPresentPresentPresent
New Hampshire Flag
New HampshirePresentPresentPresentPresent
New Jersey Flag
New JerseyPresentPresentPresentPresent
New York Flag
New YorkPresentPresentPresentPresent
North Carolina Flag
North CarolinaPresentPresentPresentPresent
North Dakota Flag
North DakotaPresentPresentPresent
Ohio Flag
OhioPresentPresentPresentPresent
Oklahoma Flag
OklahomaPresentPresentPresentPresent
Oregon Flag
OregonPresentPresent
Pennsylvania Flag
PennsylvaniaPresentPresentPresentPresent
Rhode Island Flag
Rhode IslandPresentPresentPresentPresent
South Carolina Flag
South CarolinaPresentPresentPresentPresent
South Dakota Flag
South DakotaPresentPresentPresent
Tennessee Flag
TennesseePresentPresentPresentPresent
Texas Flag
TexasPresentPresentPresentPresent
Vermont Flag
VermontPresentPresentPresent
Virginia Flag
VirginiaPresentPresentPresentPresent
West Virginia Flag
West VirginiaPresentPresentPresentPresent
Wisconsin Flag
WisconsinPresentPresentPresent
Wyoming Flag
WyomingPresentPresent
Alaska Flag
AlaskaNon-nativeNon-native
Arizona Flag
ArizonaPresent
Colorado Flag
ColoradoPresent
Hawaii Flag
HawaiiPresent
Idaho Flag
IdahoPresent
Nevada Flag
NevadaPresent
New Mexico Flag
New MexicoPresent
Utah Flag
UtahPresent
Washington Flag
WashingtonPresent
  • Ticks exist in every state in the US, though they are less common and diverse in the northern states and cooler climates.
  • Data focus upon ticks that can transmit diseases to humans. Tick species that do not transmit diseases to humans are excluded.
  • Alaska is the only US state with zero native tick species that can carry disease to humans (though it does have at least one native species, Ixodes angustus, which is common on hares and squirrels). However, several species can survive and even overwinter there if introduced on animals (typically dogs) from out of state.