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is a city in Maricopa County, Arizona, USA. According to 2006 Census Bureau estimates, the population of the city is 75,403.
Avondale is the home of Phoenix International Raceway, a famous auto racing facility, the location of the Bashas' Supermarkets 200, Checker Auto Parts 500, and the Subway Fresh 500 NASCAR races. Westview, La Joya, and Agua Fria are large high schools in Avondale.
Avondale also recently proposed annexation of the community of the community, "Wigwam Creek".
According to the United States Census Bureau, the city has a total area of 41.3 square miles (107.0 km²), of which, 41.3 square miles (106.9 km²) of it is land and 0.1 square miles (0.2 km²) of it (0.15%) is water.