Characters in Absalom, Absalom! can never transcend their origins: Sutpen will always be a country rube; Quentin, though at Harvard, will always be from the South – which fascinates his Northern roommate, Shreve; Charles Bon is very much a product of the cosmopolitan city of New Orleans where he grew up. The list goes on. Bottom line: characters are very influenced by the regions where they live, and each place represents very different qualities. We won't go into too much detail here (check out the "Quotes" for a bunch of examples), but we will say this: don't be fooled by discussions of "the South" – in Absalom, Absalom! every state, every city, every home has its own unique identity.
No matter how much he criticizes, it's clear from his tone that William Faulkner loves the South.
The regions we see throughout the novel are imagined: they are not real geographical spaces.