Ten counties gained more than 200,000 residents from 2000 to 2007, according to population estimates released by the U.S. Census Bureau.
The nation's Hispanic population increased 1.4 million to reach 45.5 million on July 1, 2007, or 15.1 percent of the estimated total U.S. population of 301.6 million.
National and state estimates by race, Hispanic origin, sex and age released by the U.S. Census Bureau also show that the Hispanic population exceeded 500,000 in 16 states.
Hispanics remained the largest minority group, with blacks(single race or multiracial) second at 40.7 million in 2007. The black population exceeded 500,000 in 20 states. Blacks were the largest minority group in 24 states, compared with 20 states in which Hispanics were the largest minority group.
Blacks were followed by Asians, who totaled 15.2 million; American Indians and Alaska Natives, who totaled 4.5 million; and Native Hawaiians and Other Pacific Islanders, with 1 million. The population of whites (single race and not of Hispanic origin) totaled 199.1 million.