largest city in nation
Houston is the fourth-largest city in the United States of America, and the largest city in the state of Texas. According to the 2010 U.S. Census, the city had a population of 2.1 million people within an area of 579 square miles (1,500 km2). 3. Chicago is the largest city in the US state of Illinois. With nearly 2.7 million residents, it is the most populous city in the Midwestern United States and the third most populous in the USA, after New York City and Los Angeles.