What is the biggest city in the United States?

With an estimated 8.4 million residents, New York City is the biggest city in the United States and the eighth largest in the world. The city's metropolitan area is home to roughly 19.9 million residents across more than 13,000 square miles in New York, Connecticut, Pennsylvania and New Jersey.

In terms of population, Los Angeles and Chicago are the second- and third-largest cities in the United States, consisting of 3.8 million and 2.7 million people respectively. Rounding out the top 10 largest cities are Houston, Texas; Philadelphia, Pa.; Phoenix, Ariz.; San Antonio, Texas; San Diego, Calif.; Dallas, Texas; and San Jose, Calif.