RANKING · 2025 ESTIMATES · 64 SHOWN OF 64

Largest by population, Louisiana counties

The most populous Louisiana counties as of the 2025 population estimates. This list covers the 64 counties in Louisiana that qualify, ranked against each other statewide. The median across all 64 is 31,980.

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SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2025

RANKPLACESTATETOTAL POPULATIONVS 2000

01East Baton Rouge Parish, LALA456,180+10%

02Jefferson Parish, LALA431,398−5%

03Orleans Parish, LALA362,154−25%

04St. Tammany Parish, LALA279,108+46%

05Lafayette Parish, LALA257,949+35%

06Caddo Parish, LALA224,226−11%

07Calcasieu Parish, LALA208,466+14%

08Ouachita Parish, LALA158,542+8%

09Livingston Parish, LALA155,036+69%

10Tangipahoa Parish, LALA141,346+41%

11▲2Ascension Parish, LALA135,105+76%

12Bossier Parish, LALA131,867+34%

13▼2Rapides Parish, LALA125,8770%

14Terrebonne Parish, LALA104,1630%

15Lafourche Parish, LALA95,505+6%

16St. Landry Parish, LALA80,765−8%

17Iberia Parish, LALA66,846−9%

18▲1Vermilion Parish, LALA57,671+7%

19▼1Acadia Parish, LALA57,032−3%

20▲1St. Martin Parish, LALA51,106+5%

21▼1St. Charles Parish, LALA50,586+5%

22▲2Lincoln Parish, LALA48,360+14%

23▼1St. Mary Parish, LALA46,552−13%

24▲2St. Bernard Parish, LALA45,642−32%

25▼2Vernon Parish, LALA45,091−14%

26▼1Washington Parish, LALA44,937+2%

27St. John the Baptist Parish, LALA39,875−7%

28Avoyelles Parish, LALA37,941−9%

29▲2Beauregard Parish, LALA36,673+11%

30▼1Natchitoches Parish, LALA36,089−8%

31▼1Webster Parish, LALA34,948−16%

32Evangeline Parish, LALA31,980−10%

33Jefferson Davis Parish, LALA31,4710%

34Iberville Parish, LALA29,579−11%

35West Baton Rouge Parish, LALA28,756+33%

36De Soto Parish, LALA27,381+7%

37Morehouse Parish, LALA23,705−24%

38▲1Allen Parish, LALA22,672−11%

39▼1Plaquemines Parish, LALA22,256−17%

40Grant Parish, LALA22,075+18%

41Sabine Parish, LALA21,834−7%

42Union Parish, LALA20,561−10%

43Assumption Parish, LALA19,720−16%

44▲2Richland Parish, LALA19,582−7%

45▼1Pointe Coupee Parish, LALA19,520−14%

46▲1Franklin Parish, LALA19,002−11%

47▼2St. James Parish, LALA18,938−11%

48East Feliciana Parish, LALA18,911−11%

49Concordia Parish, LALA17,836−12%

50▲1Jackson Parish, LALA15,834+3%

51▲1LaSalle Parish, LALA15,154+6%

52▼2West Feliciana Parish, LALA15,1340%

53▲1Winn Parish, LALA14,961−11%

54▼1Claiborne Parish, LALA13,354−21%

55Bienville Parish, LALA12,269−22%

56St. Helena Parish, LALA10,758+2%

57▲2Caldwell Parish, LALA9,344−12%

58West Carroll Parish, LALA9,156−26%

59▼2Madison Parish, LALA8,844−36%

60Catahoula Parish, LALA8,223−25%

61Red River Parish, LALA7,165−26%

62East Carroll Parish, LALA6,760−28%

63Cameron Parish, LALA4,718−53%

64Tensas Parish, LALA3,700−44%

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU POPULATION ESTIMATES