"Following jobs to rural and suburban areas, in industries like construction and the food business, immigrant populations rose more than 60 percent in places where immigrants made up fewer than 5 percent of the population in 2000. In areas that had been home to the most immigrants, the foreign-born population was flat over that period.
In Los Angeles County, long a major destination for new immigrants, the foreign-born population remained largely unchanged for the first time in several decades. In contrast, it quadrupled in Newton County, in central Georgia outside Atlanta."
The trends are based on estimates from the American Community Survey, collected over the course of five years from roughly 10 percent of the U.S. population.