Suburban counties in the West and South have once again dominated the list of fastest-growing areas.
The Census Bureau says Rockwall County, Texas, about 20 miles east of Dallas, is the fastest growing county in the country -- ballooning by eight percent between July 2001 and July 2002. Suburbs around Denver and Washington also had big gains.
Three suburban counties near Atlanta make the top 10: Henry, Newton and Forsyth.
Census figures show that nationwide, immigrants are moving to big cities, while others are heading into counties on the fringes of large metropolitan areas.
Most of the largest urban counties had little or no growth and a Brookings Institution expert says they are increasingly dependent on immigration. Growth in the suburbs, meantime, has occurred because the more affordable homes are further out.