Harvey is a census-designated place (CDP) in Jefferson Parish, Louisiana, United States. Harvey is on the south side (referred to as the "West Bank") of the Mississippi River, within the New Orleans–Metairie–Kenner metropolitan statistical area. The majority-minority population was 20,348 at the 2010 census, down from 22,226 at the 2000 census. The 2020 census determined 22,236 people lived in the CDP.