Regional/local differences in "real" communication at work?

Hello. A "workplace culture" question. Advice is welcome, including suggestions for where else I might inquire about this.

I'm wondering if there are parts of the country, or even particular cities, where saying what you "really think" at work is considered relatively more acceptable than in other places. In other words, are there cities in the U.S. where people in general do less "beating around the bush" in work situations, such as meetings, and that communication style is considered more the norm?

Please note: I know there is a great deal one can work on personally to temper communications for workplace acceptability. That's a whole discussion unto itself. In this case, I'm wondering only about regional workplace culture differences that affect the acceptability of "open" communication in the workplace.

Thank you for your thoughts!