RANKING · 2025 ESTIMATES · 64 SHOWN OF 64

Most densely populated, Louisiana counties

Louisiana counties ranked by residents per square mile (2025). This list covers the 64 counties in Louisiana that qualify, ranked against each other statewide. The median across all 64 is 48.

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SAME RANKING BYCities States Metros

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Orleans Parish, LALA362,1542,137−25%

02Jefferson Parish, LALA431,3981,434−5%

03East Baton Rouge Parish, LALA456,1801,001+10%

04Lafayette Parish, LALA257,949960+35%

05Ascension Parish, LALA135,105466+76%

06St. Tammany Parish, LALA279,108330+46%

07▲1Ouachita Parish, LALA158,542260+8%

08▼1Caddo Parish, LALA224,226255−11%

09Livingston Parish, LALA155,036239+69%

10Calcasieu Parish, LALA208,466196+14%

11St. John the Baptist Parish, LALA39,875186−7%

12St. Charles Parish, LALA50,586182+5%

13Tangipahoa Parish, LALA141,346179+41%

14Bossier Parish, LALA131,867157+34%

15West Baton Rouge Parish, LALA28,756150+33%

16▲1St. Bernard Parish, LALA45,642121−32%

17▼1Iberia Parish, LALA66,846116−9%

18Lincoln Parish, LALA48,360103+14%

19Rapides Parish, LALA125,877950%

20Lafourche Parish, LALA95,50589+6%

21St. Landry Parish, LALA80,76587−8%

22▲2Acadia Parish, LALA57,03287−3%

23▼1Terrebonne Parish, LALA104,163850%

24▼1St. Mary Parish, LALA46,55283−13%

25St. James Parish, LALA18,93880−11%

26St. Martin Parish, LALA51,10669+5%

27Washington Parish, LALA44,93767+2%

28Webster Parish, LALA34,94859−16%

29Assumption Parish, LALA19,72057−16%

30▲1Vermilion Parish, LALA57,67149+7%

31▼1Jefferson Davis Parish, LALA31,471480%

32▲1Evangeline Parish, LALA31,98048−10%

33▼1Iberville Parish, LALA29,57948−11%

34Avoyelles Parish, LALA37,94146−9%

35East Feliciana Parish, LALA18,91142−11%

36West Feliciana Parish, LALA15,134380%

37▲2Richland Parish, LALA19,58235−7%

38▼1Pointe Coupee Parish, LALA19,52035−14%

39▲1Grant Parish, LALA22,07534+18%

40▼2Vernon Parish, LALA45,09134−14%

41▲2Beauregard Parish, LALA36,67332+11%

42▲2De Soto Parish, LALA27,38131+7%

43▼1Franklin Parish, LALA19,00230−11%

44▼3Morehouse Parish, LALA23,70530−24%

45▲2Allen Parish, LALA22,67230−11%

46Natchitoches Parish, LALA36,08929−8%

47▼2Plaquemines Parish, LALA22,25629−17%

48▲3Jackson Parish, LALA15,83428+3%

49▲1St. Helena Parish, LALA10,75826+2%

50▼1Concordia Parish, LALA17,83626−12%

51▼3West Carroll Parish, LALA9,15625−26%

52Sabine Parish, LALA21,83425−7%

53▲1LaSalle Parish, LALA15,15424+6%

54▼1Union Parish, LALA20,56123−10%

55Red River Parish, LALA7,16518−26%

56Claiborne Parish, LALA13,35418−21%

57Caldwell Parish, LALA9,34418−12%

58East Carroll Parish, LALA6,76016−28%

59▲2Winn Parish, LALA14,96116−11%

60Bienville Parish, LALA12,26915−22%

61▼2Madison Parish, LALA8,84414−36%

62Catahoula Parish, LALA8,22312−25%

63Tensas Parish, LALA3,7006−44%

64Cameron Parish, LALA4,7184−53%

SHOWING 1–64 OF 64

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU POPULATION ESTIMATES