Richard Florida writes:

The United States has sent more than 500 Olympians to London. Ranging from 15 to 54 years of age, they'll compete in almost every Olympic sport.

We all know that their red, white, and blue uniforms come from China, but where do the athletes themselves hail from?

With the help of my former MPI colleague Patrick Adler, now a doctoral student at UCLA, I took a look. Adler was able to track down the hometowns for 467 of America’s Olympians and the places they currently live for 445. As usual, Zara Matheson mapped the data.

http://www.theatlanticcities.com/arts-and-lifestyle/2012/07/geography-team-usa/2751/