RANKING · 2025 ESTIMATES · 64 SHOWN OF 64

Most population lost, Louisiana counties

Louisiana counties that lost the most residents from the 2020 census to 2025, by raw count of people rather than percentage. This list covers the 64 counties in Louisiana that qualify, ranked against each other statewide. The median across all 64 is -661. Biggest climber in the top 100 since 2020: Orleans Parish, LA, up 63 places to #1.

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SAME RANKING BYCities States Metros

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

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01▲63Orleans Parish, LALA362,154-21,843+78%

02▼1Caddo Parish, LALA224,226-13,622−449%

03▲52Jefferson Parish, LALA431,398-9,383−231%

04▲58Calcasieu Parish, LALA208,466-8,319−154%

05▲9Terrebonne Parish, LALA104,163-5,417−172%

06▲19Rapides Parish, LALA125,877-4,146−21%

07▼2Vernon Parish, LALA45,091-3,659−61%

08▼1Iberia Parish, LALA66,846-3,083−162%

09▼7St. Mary Parish, LALA46,552-2,854−38%

10▼4St. John the Baptist Parish, LALA39,875-2,602−185%

11▲39Lafourche Parish, LALA95,505-2,052−150%

12▼9Webster Parish, LALA34,948-2,019+1178%

13▲30St. Charles Parish, LALA50,586-1,963−135%

14▼1Morehouse Parish, LALA23,705-1,924+110%

15▲38Ouachita Parish, LALA158,542-1,826−136%

16▲18St. Landry Parish, LALA80,765-1,775−124%

17▼5Avoyelles Parish, LALA37,941-1,752−175%

18Natchitoches Parish, LALA36,089-1,426−160%

19▼8Assumption Parish, LALA19,720-1,319−308%

20▲27Plaquemines Parish, LALA22,256-1,259−207%

21▼1St. James Parish, LALA18,938-1,254−472%

22▼3Pointe Coupee Parish, LALA19,520-1,238−655%

23▼6Madison Parish, LALA8,844-1,173−193%

24▲7Cameron Parish, LALA4,718-899−223%

25▼10Concordia Parish, LALA17,836-851+46%

26▼17Claiborne Parish, LALA13,354-816+47%

27▲21Jefferson Davis Parish, LALA31,471-779−209%

28▲5Franklin Parish, LALA19,002-772−31%

29Bienville Parish, LALA12,269-712+214%

30▲11East Carroll Parish, LALA6,760-699+143%

31▼4Catahoula Parish, LALA8,223-683+371%

32▼24Iberville Parish, LALA29,579-662−129%

33▲6St. Martin Parish, LALA51,106-661−114%

34▲1East Feliciana Parish, LALA18,911-628−129%

35▲24East Baton Rouge Parish, LALA456,180-601−102%

36▼15West Carroll Parish, LALA9,156-595−369%

37▼13Union Parish, LALA20,561-546−126%

38▼34Acadia Parish, LALA57,032-544−118%

39▼17Washington Parish, LALA44,937-526−171%

40▼4Richland Parish, LALA19,582-461−231%

41▼13Red River Parish, LALA7,165-455−294%

42▼10Tensas Parish, LALA3,700-447−8%

43▼20Evangeline Parish, LALA31,980-370−117%

44▼28Sabine Parish, LALA21,834-321−139%

45▼7Caldwell Parish, LALA9,344-301−140%

46▼6West Feliciana Parish, LALA15,134-176−108%

47▼5St. Helena Parish, LALA10,758-162−125%

48▼4Grant Parish, LALA22,075-94−108%

49▼39Allen Parish, LALA22,672-78−102%

50▲1Lincoln Parish, LALA48,360-36−105%

51▼2Beauregard Parish, LALA36,673+124−96%

52▼15Vermilion Parish, LALA57,671+312−92%

53▼8LaSalle Parish, LALA15,154+363−41%

54▼8De Soto Parish, LALA27,381+569+284%

55▼25Jackson Parish, LALA15,834+803−361%

56▼30Winn Parish, LALA14,961+1,206+93%

57▼5West Baton Rouge Parish, LALA28,756+1,557−29%

58▼4St. Bernard Parish, LALA45,642+1,878+214%

59▼3Bossier Parish, LALA131,867+3,121−74%

60▼3Tangipahoa Parish, LALA141,346+8,189−45%

61▼1Ascension Parish, LALA135,105+8,605−53%

62▼4Livingston Parish, LALA155,036+12,754−40%

63St. Tammany Parish, LALA279,108+14,538−69%

64▼3Lafayette Parish, LALA257,949+16,196−37%

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