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.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDFastest growing Fastest shrinking Most population gained Most population lost Most densely populated Most sparsely populated

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%

11Ascension Parish, LALA135,105+76%

12Bossier Parish, LALA131,867+34%

13Rapides Parish, LALA125,877−0%

14Terrebonne Parish, LALA104,163−0%

15Lafourche Parish, LALA95,505+6%

16St. Landry Parish, LALA80,765−8%

17Iberia Parish, LALA66,846−9%

18Vermilion Parish, LALA57,671+7%

19Acadia Parish, LALA57,032−3%

20St. Martin Parish, LALA51,106+5%

21St. Charles Parish, LALA50,586+5%

22Lincoln Parish, LALA48,360+14%

23St. Mary Parish, LALA46,552−13%

24St. Bernard Parish, LALA45,642−32%

25Vernon Parish, LALA45,091−14%

26Washington Parish, LALA44,937+2%

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

28Avoyelles Parish, LALA37,941−9%

29Beauregard Parish, LALA36,673+11%

30Natchitoches Parish, LALA36,089−8%

31Webster Parish, LALA34,948−16%

32Evangeline Parish, LALA31,980−10%

33Jefferson Davis Parish, LALA31,471+0%

34Iberville Parish, LALA29,579−11%

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

36De Soto Parish, LALA27,381+7%

37Morehouse Parish, LALA23,705−24%

38Allen Parish, LALA22,672−11%

39Plaquemines Parish, LALA22,256−17%

40Grant Parish, LALA22,075+18%

41Sabine Parish, LALA21,834−7%

42Union Parish, LALA20,561−10%

43Assumption Parish, LALA19,720−16%

44Richland Parish, LALA19,582−7%

45Pointe Coupee Parish, LALA19,520−14%

46Franklin Parish, LALA19,002−11%

47St. James Parish, LALA18,938−11%

48East Feliciana Parish, LALA18,911−11%

49Concordia Parish, LALA17,836−12%

50Jackson Parish, LALA15,834+3%

51LaSalle Parish, LALA15,154+6%

52West Feliciana Parish, LALA15,134+0%

53Winn Parish, LALA14,961−11%

54Claiborne Parish, LALA13,354−21%

55Bienville Parish, LALA12,269−22%

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

57Caldwell Parish, LALA9,344−12%

58West Carroll Parish, LALA9,156−26%

59Madison 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%

SHOWING 1–64 OF 64

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU POPULATION ESTIMATES