The U.S. population is more than 316 million. In less than 40 years, the U.S. Census Bureau projects, we will reach 450 million, a 42 percent increase. Where is this population going to live? The answer to that question appears relatively clear. America’s urban population increased by 12.1 percent from 2000 to 2010, outpacing the nation’s overall growth rate of 9.7 percent for the same period. Today, more than 82 percent of U.S. citizens live in urban areas.