Amarillo is the 14th-largest city in the U.S. state of Texas and the county seat of Potter County. A portion of the city, the biggest in the Texas Panhandle, extends into Randall County. As of the 2000 U.S. Census, the city had a total population of 173,627. The Amarillo metropolitan area, however, has an estimated population of 236,113 in four counties. Amarillo apartments for rent comparison page shows most up to date rent information on Amarillo apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.