With a population of 7.5 million residents, Dallas is the primary city in the Dallas-Fort Worth metroplex, the nation's fourth-largest metropolitan area, and the third-largest city in Texas. It is the most populous city in Dallas County and extends into surrounding counties such as Collin, Denton, Kaufman, and Rockwall. As per the 2020 census, the city's population is 1,304,379, ranking it as the ninth most populous city in the US. North Texas boasts the most extensive inland metropolitan area and the largest urban area in the Southern United States without any navigable links to the sea, with Dallas serving as the central hub.

The third most populous city in Texas, following Houston and San Antonio, is Dallas, which is also the ninth most populous city in the United States. The biggest metropolitan area in Texas and the Southern United States is the Greater Houston metropolitan area, which houses a quarter of the state's population. Since the 2010 US Census, Dallas has had a population of 1,304,379, with a growth of 106,563 according to the 2020 US Census.

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