RANKING · 2025 ESTIMATES · 92 SHOWN OF 92

Largest by population, Indiana counties

The most populous Indiana counties as of the 2025 population estimates. This list covers the 92 counties in Indiana that qualify, ranked against each other statewide. The median across all 92 is 34,799.

IndianaAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

YEAR1990 2000 2010 2020 2025

RANKPLACESTATETOTAL POPULATIONVS 2000

01Marion County, ININ992,196+15%

02Lake County, ININ504,612+4%

03Allen County, ININ402,329+21%

04Hamilton County, ININ387,036+112%

05St. Joseph County, ININ272,861+3%

06Elkhart County, ININ208,774+14%

07▲2Hendricks County, ININ193,510+86%

08▼1Tippecanoe County, ININ190,456+28%

09▼1Vanderburgh County, ININ181,995+6%

10Porter County, ININ176,049+20%

11Johnson County, ININ174,262+51%

12Monroe County, ININ143,345+19%

13Madison County, ININ135,088+1%

14Clark County, ININ130,451+35%

15▲1Delaware County, ININ113,106−5%

16▼1LaPorte County, ININ111,294+1%

17Vigo County, ININ106,512+1%

18▲4Hancock County, ININ90,969+64%

19Bartholomew County, ININ85,729+20%

20▼2Howard County, ININ83,904−1%

21▼1Floyd County, ININ82,153+16%

22▼1Kosciusko County, ININ80,892+9%

23▲1Boone County, ININ80,689+75%

24▼1Morgan County, ININ74,967+12%

25▲2Warrick County, ININ66,803+28%

26▼1Grant County, ININ66,524−9%

27▼1Wayne County, ININ66,169−7%

28Dearborn County, ININ51,609+12%

29Henry County, ININ49,137+1%

30Noble County, ININ47,937+4%

31Jackson County, ININ47,370+15%

32Marshall County, ININ46,599+3%

33Shelby County, ININ45,882+6%

34Lawrence County, ININ45,568−1%

35▲1DeKalb County, ININ44,535+11%

36▼1Dubois County, ININ44,016+11%

37LaGrange County, ININ41,305+18%

38Harrison County, ININ40,437+18%

39Montgomery County, ININ38,954+4%

40▲1Putnam County, ININ37,876+5%

41▼1Cass County, ININ37,836−8%

42Huntington County, ININ37,224−2%

43▲2Adams County, ININ36,650+9%

44▼1Knox County, ININ35,652−9%

45▲2Whitley County, ININ35,046+14%

46Steuben County, ININ34,799+5%

47▼3Miami County, ININ34,487−4%

48Daviess County, ININ34,209+15%

49▲3Jasper County, ININ33,894+13%

50▼1Clinton County, ININ33,322−2%

51▼1Jefferson County, ININ33,279+5%

52▼1Gibson County, ININ33,091+2%

53▲1Greene County, ININ31,165−6%

54▼1Wabash County, ININ30,713−12%

55Ripley County, ININ29,434+11%

56▲1Wells County, ININ28,883+5%

57▼1Washington County, ININ28,383+4%

58Jennings County, ININ27,6220%

59Decatur County, ININ26,576+8%

60Clay County, ININ26,410−1%

61▲1White County, ININ25,1640%

62▲2Scott County, ININ25,053+9%

63▼2Posey County, ININ24,988−8%

64▼1Randolph County, ININ24,438−11%

65Fayette County, ININ23,533−8%

66Starke County, ININ23,425−1%

67Franklin County, ININ23,286+5%

68Owen County, ININ21,8860%

69Sullivan County, ININ20,831−4%

70▲2Carroll County, ININ20,655+2%

71Jay County, ININ20,118−8%

72▼2Fulton County, ININ20,091−2%

73▲1Spencer County, ININ20,061−2%

74▼1Orange County, ININ19,834+3%

75Perry County, ININ19,389+3%

76▲1Fountain County, ININ17,013−5%

77▼1Rush County, ININ16,767−8%

78Parke County, ININ16,642−3%

79Brown County, ININ15,777+5%

80Vermillion County, ININ15,488−8%

81Tipton County, ININ15,319−8%

82Newton County, ININ14,188−3%

83Pulaski County, ININ12,463−9%

84Pike County, ININ12,003−6%

85Blackford County, ININ11,730−17%

86Crawford County, ININ10,509−2%

87▲1Switzerland County, ININ10,037+11%

88▼1Martin County, ININ9,856−5%

89Benton County, ININ8,883−6%

90Warren County, ININ8,474+1%

91Union County, ININ6,863−7%

92Ohio County, ININ5,994+7%

SHOWING 1–92 OF 92

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