Angleton is the county seat of Brazoria County in the U.S. state of Texas within the Houston-Sugar Land-Baytown metropolitan area. Angleton lies at the intersection of Texas State Highway 288, State Highway 35, and the Union Pacific Railroad. As of the 2000 U.S. Census, the city population was 18,130. Angleton apartments for rent comparison page shows most up to date rent information on Angleton apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.