Mapping Presidential Elections

By R.
2012 Presidential Election, each dot equals 100 votes
2012 Presidential Election (Lower 48). Each dot equals 100 votes. Red=R, Blue=D, Green=Other.
Source: County-level data from USGS.
2008 Presidential Election, each dot equals 100 votes
2008 Presidential Election (Lower 48). Each dot equals 100 votes. Red=R, Blue=D, Green=Other.
Source: County-level data from USGS.
2004 Presidential Election, each dot equals 100 votes
2004 Presidential Election (Lower 48). Each dot equals 100 votes. Red=R, Blue=D, Green=Other.
Source: County-level data from USGS.

These are part of a work-in-progress generated using Python bindings for OGR and Cairo (plus Shapely), rasterized from (very large) SVG files to PNGs using rsvg-convert.