The U.S. Census Bureau reports that between July 1, 2003 and July 1, 2004, the fastest growing cities (above 100,000 population) in the country were:
- Port St. Lucie, Florida
- Elk Grove, California
- North Las Vegas, Nevada
- Gilbert, Arizona
- Cape Coral, Florida
- Moreno Valley, California
- Chandler, Arizona
- Miramar, Florida
- Rancho Cucamonga, California
- Roseville, California
Check out the Bureau's press release for more information about large cities.

Comments
Hello, I just wanted to know world’s highest growing nations and cities.
I was looking for the same thing as Shridutt. The closest i found was at http://www.citymayors.com/statistics/urban_growth1.html