Edit: Keep finding bigger ones!
Coal County, Oklahoma, went from Bush +7 to McCain +48, a 41-point swing. Which is, coincidentally, insane.
Not for a county with all of 2200 voters.
We should have a category for counties with more than 25,000 votes.
Yeah, small counties can more easily have wild swings. This
thread, though the numbers might been adjusted since then, has swings with counties over 100,000 votes.
I'm also computing CD swings as such are being made available. So far:
to Obama:
HI-1 36.51
HI-2 35.84
IN-4 26.29
IN-7 25.84
IN-5 24.6
IL-8 24.38
CA-47 23.76
to McCain:
AR-1 15.79
AR-4 14.9
KY-5 13.77
TN-4 12.98
OK-2 12.38