Did you ever wonder what the political distribution was in Marion County? This Thursday, Common Cause is hosting a "Redistrict Indianapolis" all-day session at IUPUI (11 a.m. until 7 p.m. in Room 409 of the Campus Center at 420 University Ave; http://drawmarioncounty.org/). In preparation for this event, I have been working on the redistricting project I began last year using Quantum GIS, and the block-level Census and ACS data from 2000-2010. The map above is the precinct-level voting pattern of Democrat vs. Republican for the 2008 Presidential election. Blue is Democrat, red is Republican. Dark colors were >70% votes for that party, light colors are between 55-69% for that party, and white is 46-54%, which I considered a "swing" precinct.
By comparison, below is a map of the mayor's election last year. Very profound differences...
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