Avondale is a census-designated place (CDP) in Pueblo County, Colorado, United States. It is part of the Pueblo Metropolitan Statistical Area. The population was 674 at the 2010 census. The Avondale Post Office has the ZIP Code 81022.
A post office called Avondale has been in operation since 1892. The name Avondale is derived from Stratford-upon-Avon.