From a USA Today article of the same title by Haya El Nasser:

Suburban counties, once the bastion of white America, are becoming multiethnic tapestries, and white populations are inching up in some urban areas after big losses in the 1990s, according to new Census estimates out Friday.

"Suburbs and especially fast-growing outer suburbs are not just attracting whites anymore," says William Frey, demographer at the Brookings Institution, a think tank. "All minority groups are coming. They're a magnet for blacks as well as Hispanics and Asians."

The changes are dramatic in the South. About 74% of the growth in the U.S. black population happened there from 2000 to 2005. The region also generated about 71% of the national growth in whites, 42% of the Hispanic growth and 27% of the Asian growth.