RANKING · 2020 CENSUS · 64 SHOWN OF 64

Fastest growing, Louisiana counties · 2020

Louisiana counties ranked by population growth from the 2010 census to 2020. This list covers the 64 counties in Louisiana that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest shrinking Most population gained Most population lost Most densely populated Most sparsely populated

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION GROWTHVS 2000

01St. Bernard Parish, LALA45,642+21.9%+2342%

02Ascension Parish, LALA135,105+18.0%−43%

03West Baton Rouge Parish, LALA28,756+14.3%+28%

04St. Tammany Parish, LALA279,108+13.2%−59%

05Calcasieu Parish, LALA208,466+12.5%+36%

06Orleans Parish, LALA362,154+11.7%−573%

07Livingston Parish, LALA155,036+11.1%−63%

08Bossier Parish, LALA131,867+10.1%−29%

09Tangipahoa Parish, LALA141,346+10.0%−43%

10Lafayette Parish, LALA257,949+9.1%−42%

11Ouachita Parish, LALA158,542+4.3%+22%

12East Baton Rouge Parish, LALA456,180+3.8%−56%

13Lincoln Parish, LALA48,360+3.6%+94%

14Beauregard Parish, LALA36,673+2.5%−74%

15Jefferson Davis Parish, LALA31,471+2.1%−11%

16Plaquemines Parish, LALA22,256+2.1%−56%

17Jefferson Parish, LALA431,398+1.9%+19%

18Lafourche Parish, LALA95,505+1.3%−73%

19De Soto Parish, LALA27,381+0.6%+0%

20St. Charles Parish, LALA50,586-0.4%−103%

21Grant Parish, LALA22,075-0.6%−109%

22LaSalle Parish, LALA15,154-0.7%−115%

23St. Martin Parish, LALA51,106-0.8%−107%

24St. Landry Parish, LALA80,765-1.0%−111%

25Vermilion Parish, LALA57,671-1.1%−115%

26Rapides Parish, LALA125,877-1.2%−70%

27West Feliciana Parish, LALA15,134-2.0%−112%

28Terrebonne Parish, LALA104,163-2.0%−126%

29St. Helena Parish, LALA10,758-2.5%−138%

30Richland Parish, LALA19,582-3.3%−293%

31East Feliciana Parish, LALA18,911-3.6%−132%

32Washington Parish, LALA44,937-3.6%−311%

33East Carroll Parish, LALA6,760-3.9%+30%

34Iberia Parish, LALA66,846-4.5%−162%

35Franklin Parish, LALA19,002-4.8%−5%

36Caldwell Parish, LALA9,344-4.8%−163%

37Evangeline Parish, LALA31,980-4.8%−174%

38Natchitoches Parish, LALA36,089-5.2%−180%

39Avoyelles Parish, LALA37,941-5.7%−195%

40Caddo Parish, LALA224,226-6.7%−527%

41Acadia Parish, LALA57,032-6.8%−227%

42Vernon Parish, LALA45,091-6.8%−55%

43Union Parish, LALA20,561-7.1%−170%

44St. John the Baptist Parish, LALA39,875-7.5%−198%

45Jackson Parish, LALA15,834-7.6%+289%

46Morehouse Parish, LALA23,705-8.4%+193%

47Sabine Parish, LALA21,834-8.6%−339%

48St. James Parish, LALA18,938-8.6%−635%

49Pointe Coupee Parish, LALA19,520-9.0%−1006%

50Iberville Parish, LALA29,579-9.4%−229%

51Bienville Parish, LALA12,269-9.6%+573%

52St. Mary Parish, LALA46,552-9.6%+22%

53Assumption Parish, LALA19,720-10.2%−464%

54Winn Parish, LALA14,961-10.2%−365%

55Concordia Parish, LALA17,836-10.3%+268%

56Webster Parish, LALA34,948-10.3%+2634%

57Allen Parish, LALA22,672-11.7%−159%

58Catahoula Parish, LALA8,223-14.4%+1001%

59West Carroll Parish, LALA9,156-16.0%−974%

60Red River Parish, LALA7,165-16.2%−746%

61Madison Parish, LALA8,844-17.2%−269%

62Claiborne Parish, LALA13,354-17.6%+453%

63Cameron Parish, LALA4,718-17.9%−326%

64Tensas Parish, LALA3,700-21.0%+208%

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