Research 2000 isn't a reliable pollster.  The guy who runs it is as left-wing loon as you can get.  The site runs polls for the DKos freaks all the time.  I have no doubt Dear Leader's numbers are lower in the South than anywhere else, but 80% in the NE and 60% in the Midwest and West?  Yeah, high concentration of urbanites especially in the NE, but in the Midwest and West the ratio of urban to non-urban isn't that much different than the South.