New List of Top 25 Supercomputers

Tianhe-2

The nearest big city is listed first.

1. Changsha, China.  "MilkyWay-2/Tianhe-2". 
2. Knoxville, TN. "Titan", ORNL.
3. San Francisco "Sequoia", LLNL.
4. Osaka-Kobe, Japan. "K".
5. Chicago, "Mira", Argonne.
6. Austin, TX. "Stampede", Univ. of Texas.
7. Juelich (Rhine/Ruhr), Germany, "JuQueen".
8. San Francisco, "Vulcan". LLNL
9. Leibniz (Munich), "SuperMUC".
10. Tianjin, "Tianhe-1A".
11. Pau (Paris), "Pangea".
12. Rome, "Fermi".
13. Washington DC, "DARPA".
14. Cincinnati, "Spirit". AFRL.
15. Paris, "Curie".
16. Shenzhen, "Nebulae".
17. Denver (Cheyenne, WY), "Yellowstone", NCAR.
18. Manchester, UK, "Blue Joule".
19. San Francisco, "Pleiades". Ames.
20. Tokyo, "Helios".
21. Tokyo, "Tsubame".
22. Albuquerque, "Cielo".
23. Edinburgh, UK. "DiRAC".
24. San Francisco, "Hopper", NERSC.
25. Paris, "TERA-100".

Source: http://www.top500.org/list/2013/06/

See also http://aftermath2022.blogspot.com/2012/06/top-50-supercomputer-locations.html