the kentucky side and the cincinatti side form an interestingly coherent cultural enclave. the area is historically populated by german catholic immigrants. in kentucky, they say "northern kentucky" to refer to the three counties next to cincinatti because of this. weird stuff. also a lot of appalachian culture. woke cincinatti actually used to be a place where it was illegal to call someone a hillbilly.
i've also found that people in kentucky describe where they're from in terms of counties, instead of city or town names. tripped me out when i first encountered it.