Iceland is 400 times larger than Amarillo, Texas.
Area: 103,000 km2 World Factbook
Population: 317,351 (July 2014) World Factbook
Iceland is a Nordic country between the North Atlantic and the Arctic Ocean. It has a population of 325,671 and an area of 103,000 km², making it the most sparsely populated country in Europe. Wikipedia
Area: 257 km2 calculated
Amarillo is the fourteenth most populous city in the state of Texas, also the largest City in the Texas Panhandle, and the seat of Potter County. A portion of the city extends into Randall County. The population was 190,695 at the 2010 census. Wikipedia