Elmwood is a census-designated place (CDP) in Jefferson Parish, Louisiana, United States, within the New Orleans–Metairie–Kenner metropolitan statistical area.

[2] It is bordered to the north by Metairie, to the east by Jefferson, to the west by Harahan, and to the south, across the Mississippi River, by Avondale and Bridge City.

Elmwood is home to the offices of the Strategic Petroleum Reserve, operated by Fluor for the United States Department of Energy.

The United States Postal Service operates a post office in Elmwood.

[17][18] The JPPSS board later arranged for the charter school to move from the Elmwood facility to the former Ralph J. Bunche Academy in Metairie.