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It is spreading. I'm in south west Ohio where it is unheard of. Well, it was until a few years ago when people starting getting it here.

You can see it spreading into Ohio (and elsewhere) in these maps from 2001 to 2019: https://www.cdc.gov/lyme/stats/maps.html

When I look at 2019 VS 2001, it looks like it is spreading north... at least for the most eastern states...