America's cities tend to be some of the most diverse places in the country, and they've become more diverse in recent years. Nearly 70% of the country's largest cities are more racially and ethnically diverse than they were in 2010, according to a U.S. News analysis. The change in urban diversity over the past decade or so has been modest, but significant. On average, the country's largest cities became 2% more diverse between 2010 and 2018. The U.S. News lists the 66 U.S. cities with a population of more than 300,000, ranked by change in racial and ethnic diversity between 2010 and 2018.