I'll go out on a limb and say my home-state of Ohio. There are a lot of social liberals around Ohio. Most of us are just staunch economic conservatives that vote accordingly.
I would say Ohio is one of the most libertarian states in the country.
This suprises me; I've always thought of Ohio as a populist leaning state.
I agree from what I've seen. Columbus and Yellow Springs areas are the only social liberal areas I can think of. The Cincy area (Tom Brinkman country) makes my county (Livingston) look almost liberal. Toledo/Cleveland/Akron/Youngstown is union country. The SE part of the state is like West Virginia. The Central/Western interior is like Indiana or West Michigan.
I don't live in Ohio though, so I'm only going on my impressions of my visits and what I've followed.