Oh wow - Mullis precinct, Dodge County. 49.9% White, 71.2% McCain. Rural place; Black and Democratic vote shares mostly match very well in the surrounding precincts - and they're a lot whiter.
And what does that usually mean?
Sure enough...
http://www.dcor.state.ga.us/GDC/FacilityMap/html/dodge_state_prison.html
So: this is interesting. First, checked out the GA Secretary of State in search of a typo, and the odd thing here is that this result is replicated across years and races - 91% for Chambliss's hopeless opponent, 89% for Kerry, etc. And the census race results are similar enough from 2000 to 2010 not to suggest wild error. So we have our new Atlas mystery. Google is tricky since the first series of hits for "Devereux Georgia" are for some sort of addiction treatment center in the suburbs of Georgia, but a bit more sleuthing turns up this. (Which, if it is indeed the cause of a 90+ Obama vote among a community of non-transplant downscale rural white southern Baptists, is really quite amazing.)
Christians that are actually Christians? Blasphemy!