Fort Worth is the 5th-most populous city in the U.S. state of Texas and the 13th-most populous city in the United States. It is the county seat of Tarrant County, covering nearly 350 square miles (910 km2) into four other counties: Denton, Johnson, Parker, and Wise. According to a 2022 United States census estimate, Fort Worth's population was 956,709. Fort Worth is the second-largest city in the Dallas–Fort Worth–Arlington metropolitan area, which is the fourth-most populous metropolitan area in the United States, and the most populous in Texas.