RANKING · 2010 CENSUS · 64 SHOWN OF 64

Largest by population, Louisiana counties · 2010

The most populous Louisiana counties as of the 2010 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, LALA440,171+7%

02Jefferson Parish, LALA432,552−5%

03Orleans Parish, LALA343,829−29%

04Caddo Parish, LALA254,969+1%

05St. Tammany Parish, LALA233,740+22%

06Lafayette Parish, LALA221,578+16%

07Calcasieu Parish, LALA192,768+5%

08Ouachita Parish, LALA153,720+4%

09Rapides Parish, LALA131,613+4%

10Livingston Parish, LALA128,026+39%

11Tangipahoa Parish, LALA121,097+20%

12Bossier Parish, LALA116,979+19%

13Terrebonne Parish, LALA111,860+7%

14Ascension Parish, LALA107,215+40%

15Lafourche Parish, LALA96,318+7%

16St. Landry Parish, LALA83,384−5%

17Iberia Parish, LALA73,240−0%

18Acadia Parish, LALA61,773+5%

19Vermilion Parish, LALA57,999+8%

20St. Mary Parish, LALA54,650+2%

21St. Charles Parish, LALA52,780+10%

22Vernon Parish, LALA52,334−0%

23St. Martin Parish, LALA52,160+7%

24Washington Parish, LALA47,168+7%

25Lincoln Parish, LALA46,735+10%

26St. John the Baptist Parish, LALA45,924+7%

27Avoyelles Parish, LALA42,073+1%

28Webster Parish, LALA41,207−1%

29Natchitoches Parish, LALA39,566+1%

30St. Bernard Parish, LALA35,897−47%

31Beauregard Parish, LALA35,654+8%

32Evangeline Parish, LALA33,984−4%

33Iberville Parish, LALA33,387+0%

34Jefferson Davis Parish, LALA31,594+1%

35Morehouse Parish, LALA27,979−10%

36De Soto Parish, LALA26,656+5%

37Allen Parish, LALA25,764+1%

38Sabine Parish, LALA24,233+3%

39West Baton Rouge Parish, LALA23,788+10%

40Assumption Parish, LALA23,421+0%

41Plaquemines Parish, LALA23,042−14%

42Pointe Coupee Parish, LALA22,802+0%

43Union Parish, LALA22,721−0%

44Grant Parish, LALA22,309+19%

45St. James Parish, LALA22,102+4%

46Concordia Parish, LALA20,822+3%

47Franklin Parish, LALA20,767−2%

48Richland Parish, LALA20,725−1%

49East Feliciana Parish, LALA20,267−5%

50Claiborne Parish, LALA17,195+2%

51Jackson Parish, LALA16,274+6%

52West Feliciana Parish, LALA15,625+3%

53Winn Parish, LALA15,313−9%

54LaSalle Parish, LALA14,890+4%

55Bienville Parish, LALA14,353−9%

56Madison Parish, LALA12,093−12%

57West Carroll Parish, LALA11,604−6%

58St. Helena Parish, LALA11,203+6%

59Catahoula Parish, LALA10,407−5%

60Caldwell Parish, LALA10,132−4%

61Red River Parish, LALA9,091−6%

62East Carroll Parish, LALA7,759−18%

63Cameron Parish, LALA6,839−32%

64Tensas Parish, LALA5,252−21%

SHOWING 1–64 OF 64

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS