Precinct Level Data (total of 2034 precincts)
http://www.chicagoelections.com/wdlevel3.asp?elec_code=19Obama wons 24 precincts with 100% support. One precinct with 549 votes
70 precincts with all but 1 vote
85 precincts with all but 2 votes
191 precincts with over 99.5%
432 precincts with over 99%
851 precincts with over 90%
Romney won 39 precincts
Romney greatest win was 68.41% in Ward 19-3 (South of St Xavier University, SW Corner of City)
Romney did well in Wards 19 (SW Corner of Chicago) and Ward 50 (NE Corner of Chicago)
http://www.chicagoelections.com/dm/general/document_3685.pdf