The New Orleans–Metairie–Slidell combined statistical area is made up of nine parishes in southeastern Louisiana and one county in Mississippi. The statistical area consists of the New Orleans metropolitan statistical area (MSA), Slidell–Mandeville–Covington, LA MSA, Picayune micropolitan statistical area (μSA), and the Bogalusa μSA. As of the 2020 census estimates, the CSA had a population of 1,510,672. In 2023, the Office of Management and Budget updated the Core Based Statistical Areas, removing St. Tammany Parish from the New Orleans–Metairie MSA to create the Slidell–Mandeville–Covington MSA.

The area was severely affected by Hurricane Katrina on August 29, 2005.

Louisiana

• Jefferson
• Orleans
• Plaquemines
• St. Bernard
• St. Charles
• St. James
• St. John the Baptist
• St. Tammany
• Washington

Mississippi

• Pearl River

• New Orleans (Principal city)
• Kenner
• Metairie (Principal city and census-designated place)

Belle Chasse Bogalusa (Principal city) Chalmette Covington (Principal city) Destrehan Estelle Gretna Harvey Jefferson LaPlace Luling

Mandeville (Principal city) Marrero Meraux Picayune, Mississippi (Principal city) River Ridge Slidell (Principal city) Terrytown Timberlane Westwego Woodmere Waggaman

Abita Springs Ama Angie Arabi Avondale Barataria Bayou Gauche Boothville Boutte Bridge City Buras Carriere, Mississippi Des Allemands Eden Isle Edgard Elmwood Empire

Franklinton Folsom Garyville Grand Isle Hahnville Harahan Hide-A-Way Lake, Mississippi Jean Lafitte Killona Lacombe Lafitte Lumberton, Mississippi Madisonville McNeill, Mississippi Montz New Sarpy Nicholson, Mississippi

Norco Paradis Pearl River Pleasure Bend Pointe a la Hache Poplarville, Mississippi Port Sulphur Poydras Reserve Saint Rose Sun Triumph Varnado Venice Violet Wallace

As of the census of 2000, there were 1,360,436 people, 515,054 households, and 347,173 families residing within the CSA. The racial makeup of the CSA was 57.7% White, 37.2% African American, 0.4% Native American, 2.1% Asian, <0.1% Pacific Islander, 1.2% from other races, and 1.4% from two or more races. Hispanic or Latino of any race were 4.3% of the population.

The median income for a household in the CSA was $37,053, and the median income for a family was $42,860. Males had a median income of $35,659 versus $23,150 for females. The per capita income for the CSA was $17,474.

• Louisiana census statistical areas
• List of cities, towns, and villages in Louisiana
• List of census-designated places in Louisiana
• Pearl River County, Mississippi

30°00′N 89°48′W / 30°N 89.8°W / 30; -89.8