Complex sentence: Since the 1970s Fort Bend County has been attracting people from all types of racial and ethnic backgrounds and according to a 2001 Claritas study, it was the fifth most diverse county in the United States among counties of 100,000 + population.
Split into simpler sentences: Since the 1970s, Fort Bend County has been attracting people from all types of racial and ethnic backgrounds. According to a 2001 Claritas study, it was the fifth-most diverse county in the United States among counties of 100,000 + population.