I think the community that I grew up in might have something that can be looked into as a sort of semi-example. I grew up in a rural town, and it had no shortage of religiosity, but most community events didn't happen at the churches. There were weekly sermons sure, but marriages, town hall meetings, debates, just about any big event would happen at our Grange hall .

(http://en.wikipedia.org/wiki/The_National_Grange_of_the_Order_of_Patrons_of_Husbandry , it's basically freemasonry for farmers)

The grange serves as sort of a meta-communal arranger of all the sub-communities of the town's religions; we have a dozen flavors of christian including catholic and jehova's witnesses, mormons, quite a few jewish people, a very few muslims, and even less atheists. But all of those groups have sub-populations belonging to the Grange, and they all get along at grange meetings fairly well. It's like it was a neutral ground, where they could all go to get things done.

Probably not a perfect example, but it's the cached thought that came to my mind as an example when i was reading this.