Louisiana statistical areas

The U.S. currently has 25 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated six combined statistical areas, ten metropolitan statistical areas, and nine micropolitan statistical areas in Louisiana. As of 2023, the largest of these is the New Orleans-Metairie-Slidell, LA-MS CSA, comprising the area around New Orleans in the southeast region of the state.

+The 25 United States statistical areas and 64 parishes of the State of LouisianaCombined statistical area2025 population (est.)Core-based statistical area2025 population (est.)County2025 population (est.)New Orleans–Metairie–Slidell, LA–MS CSA1,354,2571,294,894 ()New Orleans–Metairie, LA MSA970,849Jefferson Parish, Louisiana431,398Orleans Parish, Louisiana362,154St. Charles Parish, Louisiana50,586St. Bernard Parish, Louisiana45,642St. John the Baptist Parish, Louisiana39,875Plaquemines Parish, Louisiana22,256St. James Parish, Louisiana18,938Slidell–Mandeville–Covington, LA MSA279,108St. Tammany Parish, Louisiana279,108Picayune, MS μSA59,363Pearl River County, Mississippi59,363Bogalusa, LA μSA44,937Washington Parish, Louisiana44,937Baton Rouge–Hammond, LA CSA1,030,045Baton Rouge, LA MSA888,699East Baton Rouge Parish, Louisiana456,180Livingston Parish, Louisiana155,036Ascension Parish, Louisiana135,105Iberville Parish, Louisiana29,579West Baton Rouge Parish, Louisiana28,756Assumption Parish, Louisiana19,720Pointe Coupee Parish, Louisiana19,520East Feliciana Parish, Louisiana18,911West Feliciana Parish, Louisiana15,134St. Helena Parish, Louisiana10,758Hammond, LA MSA141,346Tangipahoa Parish, Louisiana141,346Lafayette–New Iberia–Opelousas, LA CSA571,369Lafayette, LA MSA423,758Lafayette Parish, Louisiana257,949Vermilion Parish, Louisiana57,671Acadia Parish, Louisiana57,032St. Martin Parish, Louisiana51,106Opelousas, LA μSA80,765St. Landry Parish, Louisiana80,765New Iberia, LA μSA66,846Iberia Parish, Louisiana66,846Shreveport–Bossier City–Minden, LA CSA418,422Shreveport–Bossier City, LA MSA383,474Caddo Parish, Louisiana224,226Bossier Parish, Louisiana131,867De Soto Parish, Louisiana27,381Minden, LA μSA34,948Webster Parish, Louisiana34,948Lake Charles–DeRidder, LA CSA281,328Lake Charles, LA MSA244,655Calcasieu Parish, Louisiana208,466Jefferson Davis Parish, Louisiana31,471Cameron Parish, Louisiana4,718DeRidder, LA μSA36,673Beauregard Parish, Louisiana36,673Monroe–Ruston, LA CSA270,750Monroe, LA MSA222,390Ouachita Parish, Louisiana158,542Morehouse Parish, Louisiana23,705Union Parish, Louisiana20,561Richland Parish, Louisiana19,582Ruston, LA μSA48,360Lincoln Parish, Louisiana48,360noneHouma–Bayou Cane–Thibodaux, LA MSA199,668Terrebonne Parish, Louisiana104,163Lafourche Parish, Louisiana95,505Alexandria, LA MSA147,952Rapides Parish, Louisiana125,877Grant Parish, Louisiana22,075Morgan City, LA μSA46,552St. Mary Parish, Louisiana46,552Natchitoches, LA μSA36,089Natchitoches Parish, Louisiana36,089Natchez, MS-LA μSA54,72217,836 (LA)Adams County, Mississippi30,061Concordia Parish, Louisiana17,836Jefferson County, Mississippi6,825noneVernon Parish, Louisiana45,091Avoyelles Parish, Louisiana37,941Evangeline Parish, Louisiana31,980Allen Parish, Louisiana22,672Sabine Parish, Louisiana21,834Franklin Parish, Louisiana19,002La Salle Parish, Louisiana15,154Jackson Parish, Louisiana15,834Claiborne Parish, Louisiana13,354Winn Parish, Louisiana14,961Bienville Parish, Louisiana12,269Madison Parish, Louisiana8,844West Carroll Parish, Louisiana9,156Caldwell Parish, Louisiana9,344Catahoula Parish, Louisiana8,223Red River Parish, Louisiana7,165East Carroll Parish, Louisiana6,760Tensas Parish, Louisiana3,700State of Louisiana4,618,189

+The six combined statistical areas of the State of Louisiana2025 rankCombined statistical areaPopulation2025 estimateChange2020 CensusChange2010 CensusNew Orleans-Metairie-Slidell, LA-MS CSA (LA)Baton Rouge–Hammond, LA CSALafayette–New Iberia–Opelousas, LA CSAShreveport–Bossier City–Minden, LA CSALake Charles–DeRidder, LA CSAMonroe–Ruston, LA CSANew Orleans-Metairie-Slidell, LA-MS CSA

+The 19 core-based statistical areas of the State of Louisiana2025 rankCore-based statistical areaPopulation2025 estimateChange2020 CensusChange2010 CensusNew Orleans-Metairie, LA MSABaton Rouge, LA MSALafayette, LA MSAShreveport-Bossier City, LA MSASlidell-Mandeville-Covington, LA MSALake Charles, LA MSAMonroe, LA MSAHouma–Bayou Cane–Thibodaux, LA MSAAlexandria, LA MSAHammond, LA MSAOpelousas, LA μSANew Iberia, LA μSARuston, LA μSAMorgan City, LA μSABogalusa, LA μSADeRidder, LA μSANatchitoches, LA μSAMinden, LA μSANatchez, MS-LA μSA (LA)Natchez, MS-LA μSA

Louisiana statistical areas

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