The county continues to experience significant growth and is becoming increasingly diverse. As of the 2010 census, the county's population had increased to 321,520, an increase of 27.9% over the 2000 census. , the United States Census estimates the county's population at 332,427, an increase of 3.4% since the 2010 census. As of the 2010 census, 83.85% of the population was non-Hispanic whites, 25.9% was Latino or Hispanic, 6.6% was African-American and 1.1% was Asian. As of the 2010 census, the greatest source of population growth in the county since the 2000 census came from the Latino or Hispanic population which grew from 49,296 (19.6% of the total population) to 83,177 (25.9% of the total population). In terms of ancestry, 37.9% were English, 9.9% were Irish, 9.1% were "American", 3.2% were Italian and 3.1% were German.
