Metairie is an unincorporated community and census-designated place (CDP) located in Jefferson Parish, Louisiana, within the United States. It serves as a significant component of the New Orleans metropolitan area.
As of 2020, Metairie had a population of 143,507, making it the largest community in Jefferson Parish and the fifth-largest CDP in the United States. It is also noted as the largest CDP outside of Clark County, Nevada. If the area were to be incorporated, it would rank as Louisiana's fourth-largest city, following Shreveport.