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.

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SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

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

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

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

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

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

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

07Vernon Parish, LALA45,091-3,659−61%

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

24Cameron Parish, LALA4,718-899−223%

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

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

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

28Franklin Parish, LALA19,002-772−31%

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

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

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

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

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

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

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

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

37Union Parish, LALA20,561-546−126%

38Acadia Parish, LALA57,032-544−118%

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

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

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

42Tensas Parish, LALA3,700-447−8%

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

44Sabine Parish, LALA21,834-321−139%

45Caldwell Parish, LALA9,344-301−140%

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

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

48Grant Parish, LALA22,075-94−108%

49Allen Parish, LALA22,672-78−102%

50Lincoln Parish, LALA48,360-36−105%

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

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

53LaSalle Parish, LALA15,154+363−41%

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

55Jackson Parish, LALA15,834+803−361%

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

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

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

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

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

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

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

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

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

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