What is the third largest city in US?

The third largest city in the United States is Chicago, Illinois. As of 2020, Chicago had a population of approximately 2.746 million making it the third largest city in the country after New York City and Los Angeles. Chicago is an important economic and cultural hub located in the Midwestern region of the United States, It is renowned for its architecture, including landmarks such as the Sears Tower, and the Frank Lloyd Wright-designed Robie House, Chicago is also known for its diverse neighborhoods, cultural events, and the annual Chicago Air and Water Show held along the city's famous lakefront.