Amarillo is a city in the U.S. state of Texas and the seat of Potter County. It is the 14th-most populous city in Texas and the largest city in the Texas Panhandle. A portion of the city extends into Randall County. The estimated population of Amarillo was 199,371 as of 2019. The Amarillo metropolitan area had an estimated population of 269,447 as of 2019, and the Amarillo-Pampa-Borger combined statistical area a population of 308,064.

The city of Amarillo, originally named Oneida, is situated in the Llano Estacado region. The availability of the railroad and freight service provided by the Fort Worth and Denver City Railroad contributed to the city’s growth as a cattle-marketing center in the late 19th century.

Amarillo was once the self-proclaimed “Helium Capital of the World” for having one of the country’s most productive helium fields. The city is also known as “The Yellow Rose of Texas” (as the city takes its name from the Spanish word for yellow), and most recently “Rotor City, USA” for its V-22 Osprey hybrid aircraft assembly plant.