RANKING · 2010 CENSUS · 64 SHOWN OF 64

Most population gained, Louisiana counties · 2010

Louisiana counties that added the most residents from the 2000 census to 2010, 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

01St. Tammany Parish, LALA279,108+42,472−9%

02Livingston Parish, LALA155,036+36,212+70%

03Lafayette Parish, LALA257,949+31,075+21%

04Ascension Parish, LALA135,105+30,588+66%

05East Baton Rouge Parish, LALA456,180+27,319−17%

06Tangipahoa Parish, LALA141,346+20,509+38%

07Bossier Parish, LALA131,867+18,669+53%

08Calcasieu Parish, LALA208,466+9,191−40%

09Terrebonne Parish, LALA104,163+7,357−2%

10Ouachita Parish, LALA158,542+6,470+28%

11Lafourche Parish, LALA95,505+6,344+54%

12Rapides Parish, LALA125,877+5,276−201%

13St. Charles Parish, LALA50,586+4,708−16%

14Lincoln Parish, LALA48,360+4,226+453%

15Vermilion Parish, LALA57,671+4,192+12%

16Grant Parish, LALA22,075+3,611+208%

17St. Martin Parish, LALA51,106+3,577−22%

18Washington Parish, LALA44,937+3,242+338%

19Acadia Parish, LALA57,032+2,912−2%

20St. John the Baptist Parish, LALA39,875+2,880−6%

21Caddo Parish, LALA224,226+2,808−28%

22Beauregard Parish, LALA36,673+2,668−8%

23West Baton Rouge Parish, LALA28,756+2,187+0%

24De Soto Parish, LALA27,381+1,162+685%

25St. Mary Parish, LALA46,552+1,150−125%

26St. James Parish, LALA18,938+886+163%

27Jackson Parish, LALA15,834+877−385%

28Sabine Parish, LALA21,834+774−5%

29St. Helena Parish, LALA10,758+678+4%

30LaSalle Parish, LALA15,154+608−2%

31Avoyelles Parish, LALA37,941+592−75%

32Concordia Parish, LALA17,836+575−199%

33West Feliciana Parish, LALA15,134+514−77%

34Natchitoches Parish, LALA36,089+486−80%

35Claiborne Parish, LALA13,354+344−162%

36Allen Parish, LALA22,672+324−92%

37Jefferson Davis Parish, LALA31,471+159−78%

38Iberville Parish, LALA29,579+67−97%

39Pointe Coupee Parish, LALA19,520+39−83%

40Assumption Parish, LALA19,720+33−95%

41Iberia Parish, LALA66,846-26−101%

42Union Parish, LALA20,561-82−104%

43Vernon Parish, LALA45,091-197−98%

44Richland Parish, LALA19,582-256−173%

45Caldwell Parish, LALA9,344-428−157%

46Franklin Parish, LALA19,002-496−56%

47Catahoula Parish, LALA8,223-513+254%

48Red River Parish, LALA7,165-531−326%

49Webster Parish, LALA34,948-624+295%

50West Carroll Parish, LALA9,156-710−421%

51East Feliciana Parish, LALA18,911-1,093−151%

52Tensas Parish, LALA3,700-1,366+182%

53Bienville Parish, LALA12,269-1,399+516%

54Evangeline Parish, LALA31,980-1,450−167%

55Winn Parish, LALA14,961-1,581−353%

56Madison Parish, LALA8,844-1,635−229%

57East Carroll Parish, LALA6,760-1,662+477%

58Morehouse Parish, LALA23,705-3,042+232%

59Cameron Parish, LALA4,718-3,152−531%

60Plaquemines Parish, LALA22,256-3,715−414%

61St. Landry Parish, LALA80,765-4,316−159%

62Jefferson Parish, LALA431,398-22,914−420%

63St. Bernard Parish, LALA45,642-31,332−5339%

64Orleans Parish, LALA362,154-140,845+1048%

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