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The Minnesota distribution of the blacklegged tick, Ixodes scapularis, was studied during 1998 and 1999. The majority of tick collecting was done by grouse hunters, who sent in specimens collected during the fall of 1998 and 1999. I. scapularis specimens were received from 17 counties, including eight counties in northern and central Minnesota that previously had no reports of I. scapularis. This brings the number of Minnesota counties with reported populations of I. scapularis to 30, mostly in the east-central, central, and northern parts of the state.