New Census data have focused attention on the nation’s rising immigrant population. But counts of the foreign-born often leave out an important piece of the story: the growing number of native-born children of immigrants. Almost 17 million children in the United States today have a foreign-born parent, and more than 85 percent of these children are native-born and citizens. The first point to highlight is that without children of immigrants, the U.S. population under 18 years of age would have shrunk or stagnated over the last decade. Second, the majority of these children live in metropolitan America and they are impacting and enriching these cities. Today, almost one of every three youngsters in the 100 largest metro areas has an immigrant parent.