Trivia: What is Texas’ most populous city?
Dallas
Austin
Houston
San Antonio
Correct Answer: Houston
So why is this answer correct? : Ranking after New York, Los Angeles, and Chicago, the “Space City” is home to 2.4 million residents. Texas is home to two other cities in the list of top 10 biggest cities in the U.S. San Antonio (population: 1.6 million) ranks seventh, and Dallas (population: 1.4 million) ranks ninth.