Goodyear (O'odham: Valin Thak) is a city in Maricopa County, Arizona, United States. It is a suburb of Phoenix and is in the Phoenix metropolitan area. According to the 2010 census, the population of the city is 65,275. Goodyear was the third fastest-growing place among all cities and towns in Arizona of any size between 1990 and 2000 (with an increase of 245.2%). The July 1, 2014 MAG population estimate was 74,743.