The 2010 census found 43.2 percent of Arizonans under 18 were Hispanic and that whites were for the first time in a minority in that age group, at 41.6 percent. The ethnic and generational changes set the stage for Arizona to become a “test case” for responding to demographic trends as the U.S. becomes more diverse and increasingly Hispanic, said Jeff Milem, an education professor University of Arizona in Tucson.

“Arizona seems to be in the forefront,” he said. “We’ve got to lay the groundwork now for people to come together.”

By Michael White --

Updated: Tue, Mar 29th 2011 @ 4:12pm EDT