General. Avondale Arizona demographic information. Extensive but in Adobe Acrobat format. Municipal. City of Avondale Arizona web page. Latest news, services, government. More. Chamber. Avondale Arizona. Southwest Valley Chamber of Commerce, representing Avondale, Goodyear, Litchfield Park and Tolleson. Avondale is located in Maricopa County Arizona. Zip code is 85323. Maps. for this town.
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