Yeah it doesn’t matter. I just say I live in the KC Metro so I don’t have to explain this. And when I’m talking to my family back home, it’s just Kansas City. Technically I don’t live in KC, but they don’t care.
I imagine it’s like being from NYC. If you’re from there you tell someone what borough but to everyone else it’s just NYC
There is literally a road running right up the middle called State Line Road, lol. In the right place you could probably drive in both states at the same time.