Harris County

Harris County is a county located in the U.S. state of Texas within the Houston–Sugar Land–Baytown metropolitan area. As of 2000 U.S. Census, the county had a population of 3,400,578 (though a 2007 estimate placed the population at 4,011,475), making it the most populous county in Texas and the third most populous county in the United States. Its county seat is Houston.