RANKING · 1990 CENSUS · 64 SHOWN OF 64

Most densely populated, Louisiana counties · 1990

Louisiana counties ranked by residents per square mile (1990). This list covers the 64 counties in Louisiana that qualify, ranked against each other statewide. The median across all 64 is 47.

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SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS –

01Orleans Parish, LALA362,1542,932–

02Jefferson Parish, LALA431,3981,490–

03East Baton Rouge Parish, LALA456,180834–

04Lafayette Parish, LALA257,949613–

05Caddo Parish, LALA224,226282–

06Ouachita Parish, LALA158,542233–

07Ascension Parish, LALA135,105201–

08St. John the Baptist Parish, LALA39,875186–

09St. Bernard Parish, LALA45,642176–

10St. Tammany Parish, LALA279,108171–

11Calcasieu Parish, LALA208,466158–

12St. Charles Parish, LALA50,586153–

13Iberia Parish, LALA66,846119–

14Livingston Parish, LALA155,036109–

15Tangipahoa Parish, LALA141,346108–

16St. Mary Parish, LALA46,552104–

17Bossier Parish, LALA131,867103–

18West Baton Rouge Parish, LALA28,756101–

19Rapides Parish, LALA125,87799–

20Lincoln Parish, LALA48,36089–

21St. James Parish, LALA18,93888–

22St. Landry Parish, LALA80,76587–

23Acadia Parish, LALA57,03285–

24Lafourche Parish, LALA95,50580–

25Terrebonne Parish, LALA104,16379–

26Webster Parish, LALA34,94871–

27Assumption Parish, LALA19,72066–

28Washington Parish, LALA44,93764–

29St. Martin Parish, LALA51,10660–

30Evangeline Parish, LALA31,98050–

31Iberville Parish, LALA29,57950–

32Jefferson Davis Parish, LALA31,47147–

33Avoyelles Parish, LALA37,94147–

34Vernon Parish, LALA45,09147–

35Vermilion Parish, LALA57,67143–

36East Feliciana Parish, LALA18,91142–

37Pointe Coupee Parish, LALA19,52040–

38Morehouse Parish, LALA23,70540–

39Richland Parish, LALA19,58237–

40Franklin Parish, LALA19,00236–

41West Carroll Parish, LALA9,15634–

42Plaquemines Parish, LALA22,25633–

43West Feliciana Parish, LALA15,13432–

44Concordia Parish, LALA17,83630–

45Natchitoches Parish, LALA36,08929–

46De Soto Parish, LALA27,38129–

47Allen Parish, LALA22,67228–

48Jackson Parish, LALA15,83428–

49Grant Parish, LALA22,07527–

50Sabine Parish, LALA21,83426–

51Beauregard Parish, LALA36,67326–

52St. Helena Parish, LALA10,75824–

53Red River Parish, LALA7,16524–

54Union Parish, LALA20,56124–

55East Carroll Parish, LALA6,76023–

56Claiborne Parish, LALA13,35423–

57LaSalle Parish, LALA15,15422–

58Madison Parish, LALA8,84420–

59Bienville Parish, LALA12,26920–

60Caldwell Parish, LALA9,34419–

61Winn Parish, LALA14,96117–

62Catahoula Parish, LALA8,22316–

63Tensas Parish, LALA3,70012–

64Cameron Parish, LALA4,7187–

SHOWING 1–64 OF 64

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS