Avondale is a census-designated place (CDP) in Jefferson Parish, Louisiana, United States, on the west bank of the Mississippi River.

The closest road crossing of the Mississippi is the Huey P. Long Bridge 4 miles (6 km) northeast of Avondale, carrying U.S. Route 90.

The 2019 American Community Survey reported there were 5,321 people and 1,729 households residing in the census-designated place.

[7][8][9] The median income for a household in the CDP was $40,503, up from $35,917 at the 2000 U.S. census; approximately 14.8% of the population lived at or below the poverty line, up from 17.3% in 2000.

[18] In 2012 the school board announced Rillieux was being considered for consolidation into Lucille Cherbonnier Elementary.