Red/Blue split vs. Rural/Urban split

Blog Post for this over here.

See also: our «Geography of newspaper endorsements» graph

There is some scatter, but the clear correlation of population density (horiz. axis) with politial alignment shows that the "red-blue" split is largely an "urban-rural" split.

By Philip (Flip) Kromer, flip@infochimps.org, using data from (source code here), for everything else see below.

Credits:

• Charts using amcharts.

Notes:

1. Counties with tiny population appear larger than actual size.
2. Note the logarithmic x-scale.