Alton has approximately 3,796 registered voters (data from 08/18/08 Checklist report.)
There were 956 voters yesterday. (Appx 24%)
In 2008 it was about 830 and in 2007 it was in the 780's.
Maybe I should preface it by saying "good turnout for Alton..."
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EDITED After Slickcraft's post, below. (Sorry.)
There's not 4,065 registered voters; not sure where Carbone got that number (or much of his info, for that matter.)