barnabu

About a year ago, Robert Kosara at eagereyes.org published a fascinating set of visualizations demonstrating the overall structure of ZIP (and post) codes in various countries, for obvious reasons he called them ZipScribble maps. Robert compiled  PDF maps of the USA,  and a dozen more countries. 
The concept he uses is remarkably straightforward:
 1) Plot the centroid of every ZIP code area onto a map.
 2) Join these [...]

Visualization Google Earth, KML, USA, Zip Codes, Zip Scribble