RANKING · 2020 CENSUS · 64 SHOWN OF 64

Most densely populated, Louisiana counties · 2020

Louisiana counties ranked by residents per square mile (2023). 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 growing Fastest shrinking Most sparsely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Orleans Parish, LALA362,1542,265−21%

02Jefferson Parish, LALA431,3981,465−3%

03East Baton Rouge Parish, LALA456,1801,003+11%

04Lafayette Parish, LALA257,949899+27%

05Ascension Parish, LALA135,105436+65%

06St. Tammany Parish, LALA279,108313+38%

07Caddo Parish, LALA224,226270−6%

08Ouachita Parish, LALA158,542263+9%

09Livingston Parish, LALA155,036220+55%

10Calcasieu Parish, LALA208,466204+18%

11St. John the Baptist Parish, LALA39,875198−1%

12St. Charles Parish, LALA50,586189+9%

13Tangipahoa Parish, LALA141,346168+32%

14Bossier Parish, LALA131,867153+31%

15West Baton Rouge Parish, LALA28,756141+26%

16Iberia Parish, LALA66,846122−5%

17St. Bernard Parish, LALA45,642116−35%

18Lincoln Parish, LALA48,360103+14%

19Rapides Parish, LALA125,87798+3%

20Lafourche Parish, LALA95,50591+8%

21St. Landry Parish, LALA80,76589−6%

22Terrebonne Parish, LALA104,16389+5%

23St. Mary Parish, LALA46,55288−8%

24Acadia Parish, LALA57,03288−2%

25St. James Parish, LALA18,93885−5%

26St. Martin Parish, LALA51,10670+7%

27Washington Parish, LALA44,93768+3%

28Webster Parish, LALA34,94862−12%

29Assumption Parish, LALA19,72061−10%

30Jefferson Davis Parish, LALA31,47149+3%

31Vermilion Parish, LALA57,67149+7%

32Iberville Parish, LALA29,57949−9%

33Evangeline Parish, LALA31,98049−9%

34Avoyelles Parish, LALA37,94148−4%

35East Feliciana Parish, LALA18,91143−9%

36West Feliciana Parish, LALA15,13438+1%

37Pointe Coupee Parish, LALA19,52037−9%

38Vernon Parish, LALA45,09137−7%

39Richland Parish, LALA19,58236−4%

40Grant Parish, LALA22,07534+19%

41Morehouse Parish, LALA23,70532−17%

42Franklin Parish, LALA19,00232−7%

43Beauregard Parish, LALA36,67332+11%

44De Soto Parish, LALA27,38131+5%

45Plaquemines Parish, LALA22,25630−12%

46Natchitoches Parish, LALA36,08930−4%

47Allen Parish, LALA22,67230−11%

48West Carroll Parish, LALA9,15627−21%

49Concordia Parish, LALA17,83627−8%

50St. Helena Parish, LALA10,75827+4%

51Jackson Parish, LALA15,83426−2%

52Sabine Parish, LALA21,83426−6%

53Union Parish, LALA20,56124−7%

54LaSalle Parish, LALA15,15424+4%

55Red River Parish, LALA7,16520−21%

56Claiborne Parish, LALA13,35419−16%

57Caldwell Parish, LALA9,34418−9%

58East Carroll Parish, LALA6,76018−21%

59Madison Parish, LALA8,84416−27%

60Bienville Parish, LALA12,26916−18%

61Winn Parish, LALA14,96114−19%

62Catahoula Parish, LALA8,22313−18%

63Tensas Parish, LALA3,7007−37%

64Cameron Parish, LALA4,7184−44%

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES