“cultural”? Aren’t these just geographic regions?
The US has culture?
IMO, there’s way more mixing of regional cultures than this impiles. The US for sure isn’t a monolithic culture, but its a whole lot less static than people not from here seem to think.
The division between the Midwest and the South in Kentucky doesn’t make sense to me, northern Kentucky, Louisville and the counties along or near the Ohio River are very Midwestern. I’d probably put the line along the Western Kentucky Parkway, that’d put Lexington on the border and Bowling Green solidly in the Southern region.
No one from the coastal area of new england would put connecticut, boston, and downeast maine in the same region. Those three areas are very distinct yet on this map are contiguous.
But someone from outside the region would call them the same. That person would need to move there for a while before they can tell the difference. Meanwhile they can tell culture differences between that area and Texas without effort.