
Country: United States of America Houston’s vast footprint makes it the ninth-largest city in the United States, with a municipal area spanning 640.4 square miles. Near Galveston Bay and the Gulf of Mexico in Southeast Texas, it serves as Harris County’s seat and extends into Fort Bend and Montgomery counties. With 2.3 million residents at the 2020 census, Houston is Texas’s largest city and the fourth-most populous in the country.
