Anything you plot in the USA that has a strong correlation with numbers of people ends up looking like the distribution on your map.

http://www.mapofusa.net/us-population-density-map.htm

Our budget problems must be more serious than I thought. Someone at the white house is doing HITS.

Hah! Worker 17494 is just a few meters east of the national Christmas tree! Maybe it was a WH staffer on his/her lunch break?

Interesting. I wonder if it correlates strongly to (non-satellite) broadband uptake?

There seems to be a pretty clear dividing line at the Mississippi, beyond what I would have guessed would have existed simply due to population density.

Where did the information come from?