From the U.S. Census:
Numerous metropolitan statistical areas, micropolitan statistical areas and counties that were among the fastest-growing last year were located in, or at least near, the Great Plains and West Texas, according to U.S. Census Bureau population estimates released today.
Midland, Texas, was the fastest-growing metro area over the July 1, 2011, to July 1, 2012, period, with its population increasing 4.6 percent. Adjacent Odessa, Texas, ranked fifth overall, Austin-Round Rock, Texas, was seventh, while two areas in Wyoming (Casper and Cheyenne), along with Manhattan, Kan., and Bismarck, N.D., were also among the 20 fastest-growing metropolitan areas.
Micropolitan areas, which contain an urban cluster of between 10,000 and 49,999 people, followed a similar pattern, with those located in or near the Great Plains among the fastest-growing. Williston, N.D., ranked first in growth (9.3 percent), followed by Junction City, Kan.; Dickinson, N.D.; and Andrews, Texas. Three areas in western Oklahoma (Elk City, Weatherford and Woodward), as well as Gillette, Wyo., also made the top 20.
The situation for counties was also much the same, with Williams, N.D.; Geary, Kan.; Richland, Mont.; and Stark, N.D., each among the five fastest-growing counties with populations of 10,000 or more. These are just a few examples of the plethora of counties in or near the Great Plains that appear on the list of fastest-growing counties.
When looking at the areas with the largest numeric gains, those high on the list are mainly in the South and West. The metropolitan areas of Dallas-Fort Worth, Houston, Los Angeles and New York each added more than 100,000 people over the July 1, 2011, to July 1, 2012 period. Meanwhile, Austin, Texas, and Orlando, Fla., were not only among the top 20 numeric gainers, but also among the top 20 in terms of rate of growth.
Among counties, Harris, Texas (Houston); Los Angeles, Calif.; Maricopa, Ariz. (Phoenix); Dallas, Texas; and San Diego, Calif., comprised the top-five numeric gainers.
Additional highlights and Top 10 lists are available here.