Carter's sweep of GA's counties in '76 is even more amazing given the fact that Nixon won all of GA's counties in '72.
Yeah, I find it absolutely crazy that all 159 counties would vote for a Republican one election and then four years all vote for the Democrat. Even crazier is the fact that four years earlier in 1968 Wallace fell only 17 (out of 159 mind you) counties short of sweeping Georgia. Had those 17 went for Wallace, Georgia would have gone from all counties voting American Independent to all counties voting Republican to all counties voting Democratic in just three elections!