For those of us who love maps, here is one that breaks much of North America into eleven pseudo-nations (socio-political groups). Having been born and spent my early childhood in Illinois, and raised by Mid-western born parents regardless, I can definitely see that they and I all readily qualify as proud members of Yankeedom. Of course here I am living in the Left Coast, but I qualify for membership here, too; it being an amalgam of Yankeedom Utopianism and Appalachian Independence.
But it's not just the segmentation that's interesting, it's that our incredible mobility is enabling us to sort ourselves out into these groups: Republicans are moving south. Democrats are moving north. Okay, I admit to oversimplifying the migration, but I'm trying to be illustrative, rather than exact.
How about you? Are you in your proper group? (Consider this an informal survey of the Ipse Dixit membership.)