RANKING · 2010 CENSUS · 64 SHOWN OF 64

Most densely populated, Louisiana counties · 2010

Louisiana counties ranked by residents per square mile (2010). This list covers the 64 counties in Louisiana that qualify, ranked against each other statewide. The median across all 64 is 51.

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SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Orleans Parish, LALA362,1542,028−29%

02Jefferson Parish, LALA431,3981,438−5%

03East Baton Rouge Parish, LALA456,180966+7%

04Lafayette Parish, LALA257,949824+16%

05Ascension Parish, LALA135,105370+40%

06Caddo Parish, LALA224,226290+1%

07St. Tammany Parish, LALA279,108277+22%

08Ouachita Parish, LALA158,542252+4%

09St. John the Baptist Parish, LALA39,875214+7%

10Livingston Parish, LALA155,036198+39%

11St. Charles Parish, LALA50,586190+10%

12Calcasieu Parish, LALA208,466181+5%

13Tangipahoa Parish, LALA141,346153+20%

14Bossier Parish, LALA131,867139+19%

15Iberia Parish, LALA66,8461270%

16West Baton Rouge Parish, LALA28,756124+10%

17Rapides Parish, LALA125,87799+4%

18Lincoln Parish, LALA48,36099+10%

19St. Mary Parish, LALA46,55298+2%

20St. Bernard Parish, LALA45,64295−47%

21Acadia Parish, LALA57,03294+5%

22St. James Parish, LALA18,93893+4%

23Terrebonne Parish, LALA104,16391+7%

24St. Landry Parish, LALA80,76590−5%

25Lafourche Parish, LALA95,50590+7%

26St. Martin Parish, LALA51,10671+7%

27Washington Parish, LALA44,93770+7%

28Webster Parish, LALA34,94869−1%

29Assumption Parish, LALA19,720680%

30Iberville Parish, LALA29,579540%

31Evangeline Parish, LALA31,98051−4%

32Avoyelles Parish, LALA37,94151+1%

33Vermilion Parish, LALA57,67149+8%

34Jefferson Davis Parish, LALA31,47148+1%

35East Feliciana Parish, LALA18,91145−5%

36Pointe Coupee Parish, LALA19,520410%

37Vernon Parish, LALA45,091390%

38West Feliciana Parish, LALA15,13439+3%

39Richland Parish, LALA19,58237−1%

40Morehouse Parish, LALA23,70535−10%

41Grant Parish, LALA22,07535+19%

42Allen Parish, LALA22,67234+1%

43Franklin Parish, LALA19,00233−2%

44West Carroll Parish, LALA9,15632−6%

45Natchitoches Parish, LALA36,08932+1%

46Beauregard Parish, LALA36,67331+8%

47De Soto Parish, LALA27,38130+5%

48Concordia Parish, LALA17,83630+3%

49Plaquemines Parish, LALA22,25630−14%

50Jackson Parish, LALA15,83429+6%

51Sabine Parish, LALA21,83428+3%

52St. Helena Parish, LALA10,75827+6%

53Union Parish, LALA20,561260%

54LaSalle Parish, LALA15,15424+4%

55Red River Parish, LALA7,16523−6%

56Claiborne Parish, LALA13,35423+2%

57Madison Parish, LALA8,84419−12%

58Caldwell Parish, LALA9,34419−4%

59East Carroll Parish, LALA6,76018−18%

60Bienville Parish, LALA12,26918−9%

61Winn Parish, LALA14,96116−9%

62Catahoula Parish, LALA8,22315−5%

63Tensas Parish, LALA3,7009−21%

64Cameron Parish, LALA4,7185−32%

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