Of course you have been there. It counts.
Was the same for me last year, when I had a stopover in Philadelphia. I counted it. Well, on my way back home I missed my connection and had to stay the night in Philadelphia, but I would have counted it anyway. This year, I'll have a stopover in Milwaukee - and it counts!
And I will also count Wisconsin to the states I've been to.
We have an interactive map somewhere, where you can check the states you've been to and it shows you a map of the US with your states marked red.
And we have the same with the countries of the world.
I'll go and see if I can find it.