Population: 5.2 million
Diversity index: 78
Houston is such a diverse city that it has one of the highest concentrations of consulates in the U.S. There are more than 1 million residents here who were born outside the U.S. Many are from Mexico, though there are roughly 90 languages spoken here. According to the latest census, nearly 35 percent of its population is Hispanic or Latino and nearly 17 percent is African American. And, while less than 6 percent of the population is Asian, the city is rich with Asian culture, including two Chinatowns, a Little Saigon and a “Little India.” It has a colorful arts and music scene featuring rock, blues, country and a growing hip-hop scene. There are several festivals here each year, including the Houston Livestock Show and Rodeo, a Greek festival and a Bayou City art festival.