Obama's best ward in Chicago

[nclib]

Thanks to a ward map by race posted in a redistricting thread, we know that Obama's best white-majority (or plurality) wards were:

Ward #   Total votes   Obama    %     McCain   %
49           18,902     16,835   89.06%   1,811   9.58%
48           23,680     20,125   84.99%   3,249   13.72%
46           25,893     21,783   84.13%   3,780   14.60%
47           29,409     24,343   82.77%   4,636   15.76%
40           19,516     15,985   81.91%   3,257   16.69%