Louisiana metropolitan areas

The U.S. state of Louisiana has a total of nine Metropolitan Statistical Areas (MSAs). Thirty (30) of Louisiana's sixty-four (64) parishes are classified as metropolitan. As of the 2010 census, these parishes had a combined population of 3,340,667 (74.8% of the state's population). Based on a July 1, 2009, population estimate, that figure had increased to 3,356,913 (74.7% of the state's population).

The following table lists Louisiana's metropolitan areas, ranked by population as of February 1, 2013.

Louisiana rank	U.S. rank	Metropolitan Area	Parishes	Population
1	46	New Orleans–Metairie–Kenner	(7); Jefferson, Orleans, Plaquemines, St. Bernard, St. Charles, St. John the Baptist, St. Tammany	1,189,981 (see note)
2	66	Baton Rouge	(9); Ascension, East Baton Rouge, East Feliciana, Iberville, Livingston, Pointe Coupee, St. Helena, West Baton Rouge, West Feliciana	786,947
3	130	Shreveport–Bossier City	(3); Bossier, Caddo, De Soto	391,516
4	172	Lafayette	(2); Lafayette, St. Martin	273,738
5	204	Houma–Bayou Cane–Thibodaux	(2); Lafourche, Terrebonne	209,001
6	217	Lake Charles	(2); Calcasieu, Cameron	199,607
7	229	Monroe	(2); Ouachita, Union	176,441
8	255	Alexandria	(2); Grant, Rapides	153,922
9	NA	Hammond	(1); Tangipahoa	121,097
Note: The New Orleans–Metairie–Kenner was significantly affected by Hurricane Katrina in August 2005 which resulted in a significant loss of population.