RANKING · 2020 CENSUS · 64 SHOWN OF 64

Most population lost, Louisiana counties · 2020

Louisiana counties that lost the most residents from the 2010 census to 2020, 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

01Caddo Parish, LALA224,226-17,121−538%

02St. Mary Parish, LALA46,552-5,244+14%

03Webster Parish, LALA34,948-4,240+2584%

04Acadia Parish, LALA57,032-4,197−241%

05Vernon Parish, LALA45,091-3,584−62%

06St. John the Baptist Parish, LALA39,875-3,447−213%

07Iberia Parish, LALA66,846-3,311−167%

08Iberville Parish, LALA29,579-3,146−239%

09Claiborne Parish, LALA13,354-3,025+446%

10Allen Parish, LALA22,672-3,014−172%

11Assumption Parish, LALA19,720-2,382−475%

12Avoyelles Parish, LALA37,941-2,380−202%

13Morehouse Parish, LALA23,705-2,350+156%

14Terrebonne Parish, LALA104,163-2,280−130%

15Concordia Parish, LALA17,836-2,135+267%

16Sabine Parish, LALA21,834-2,078−356%

17Madison Parish, LALA8,844-2,076−264%

18Natchitoches Parish, LALA36,089-2,051−186%

19Pointe Coupee Parish, LALA19,520-2,044−1017%

20St. James Parish, LALA18,938-1,910−667%

21West Carroll Parish, LALA9,156-1,853−938%

22Washington Parish, LALA44,937-1,705−330%

23Evangeline Parish, LALA31,980-1,634−176%

24Union Parish, LALA20,561-1,614−176%

25Rapides Parish, LALA125,877-1,590−70%

26Winn Parish, LALA14,961-1,558−349%

27Catahoula Parish, LALA8,223-1,501+935%

28Red River Parish, LALA7,165-1,471−726%

29Bienville Parish, LALA12,269-1,372+504%

30Jackson Parish, LALA15,834-1,243+304%

31Cameron Parish, LALA4,718-1,222−267%

32Tensas Parish, LALA3,700-1,105+128%

33Franklin Parish, LALA19,002-993−12%

34St. Landry Parish, LALA80,765-844−111%

35East Feliciana Parish, LALA18,911-728−134%

36Richland Parish, LALA19,582-682−294%

37Vermilion Parish, LALA57,671-640−117%

38Caldwell Parish, LALA9,344-487−165%

39St. Martin Parish, LALA51,106-393−109%

40West Feliciana Parish, LALA15,134-315−114%

41East Carroll Parish, LALA6,760-300+4%

42St. Helena Parish, LALA10,758-283−143%

43St. Charles Parish, LALA50,586-231−104%

44Grant Parish, LALA22,075-140−112%

45LaSalle Parish, LALA15,154-99−116%

46De Soto Parish, LALA27,381+156+5%

47Plaquemines Parish, LALA22,256+473−60%

48Jefferson Davis Parish, LALA31,471+656−8%

49Beauregard Parish, LALA36,673+895−69%

50Lafourche Parish, LALA95,505+1,239−70%

51Lincoln Parish, LALA48,360+1,661+117%

52West Baton Rouge Parish, LALA28,756+3,411+56%

53Ouachita Parish, LALA158,542+6,648+31%

54St. Bernard Parish, LALA45,642+7,867+1216%

55Jefferson Parish, LALA431,398+8,229+15%

56Bossier Parish, LALA131,867+11,767−4%

57Tangipahoa Parish, LALA141,346+12,060−19%

58Livingston Parish, LALA155,036+14,256−33%

59East Baton Rouge Parish, LALA456,180+16,610−49%

60Ascension Parish, LALA135,105+19,285+5%

61Lafayette Parish, LALA257,949+20,175−22%

62Calcasieu Parish, LALA208,466+24,017+56%

63St. Tammany Parish, LALA279,108+30,830−34%

64Orleans Parish, LALA362,154+40,168−428%

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