RANKING · 2010 CENSUS · 92 SHOWN OF 92

Largest by population, Indiana counties · 2010

The most populous us counties as of the 2023 estimates. This list covers the 92 counties in Indiana that qualify, ranked against each other statewide.

IndianaAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDFastest growing Fastest shrinking Most densely populated Most sparsely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPTOTAL POPULATIONVS 2000

01Marion County, ININ992,196903,393+5%

02Lake County, ININ504,612496,005+2%

03Allen County, ININ402,329355,329+7%

04Hamilton County, ININ387,036274,569+50%

05St. Joseph County, ININ272,861266,931+1%

06Elkhart County, ININ208,774197,559+8%

07Vanderburgh County, ININ181,995179,703+5%

08Tippecanoe County, ININ190,456172,780+16%

09Porter County, ININ176,049164,343+12%

10Hendricks County, ININ193,510145,448+40%

11Johnson County, ININ174,262139,654+21%

12Monroe County, ININ143,345137,974+14%

13Madison County, ININ135,088131,636−1%

14Delaware County, ININ113,106117,671−1%

15LaPorte County, ININ111,294111,467+1%

16Clark County, ININ130,451110,232+14%

17Vigo County, ININ106,512107,848+2%

18Howard County, ININ83,90482,752−3%

19Kosciusko County, ININ80,89277,358+4%

20Bartholomew County, ININ85,72976,794+8%

21Floyd County, ININ82,15374,578+5%

22Grant County, ININ66,52470,061−5%

23Hancock County, ININ90,96970,002+26%

24Wayne County, ININ66,16968,917−3%

25Morgan County, ININ74,96768,894+3%

26Warrick County, ININ66,80359,689+14%

27Boone County, ININ80,68956,640+23%

28Dearborn County, ININ51,60950,047+9%

29Henry County, ININ49,13749,462+2%

30Noble County, ININ47,93747,536+3%

31Marshall County, ININ46,59947,051+4%

32Lawrence County, ININ45,56846,134+0%

33Shelby County, ININ45,88244,436+2%

34Jackson County, ININ47,37042,376+3%

35DeKalb County, ININ44,53542,223+5%

36Dubois County, ININ44,01641,889+6%

37Harrison County, ININ40,43739,364+15%

38Cass County, ININ37,83638,966−5%

39Knox County, ININ35,65238,440−2%

40Montgomery County, ININ38,95438,124+1%

41Putnam County, ININ37,87637,963+5%

42LaGrange County, ININ41,30537,128+6%

43Huntington County, ININ37,22437,124−2%

44Miami County, ININ34,48736,903+2%

45Adams County, ININ36,65034,387+2%

46Steuben County, ININ34,79934,185+3%

47Gibson County, ININ33,09133,503+3%

48Jasper County, ININ33,89433,478+11%

49Whitley County, ININ35,04633,292+8%

50Clinton County, ININ33,32233,224−2%

51Greene County, ININ31,16533,165+0%

52Wabash County, ININ30,71332,888−6%

53Jefferson County, ININ33,27932,428+2%

54Daviess County, ININ34,20931,648+6%

55Ripley County, ININ29,43428,818+9%

56Jennings County, ININ27,62228,525+4%

57Washington County, ININ28,38328,262+4%

58Wells County, ININ28,88327,636+0%

59Clay County, ININ26,41026,890+1%

60Randolph County, ININ24,43826,171−4%

61Posey County, ININ24,98825,910−4%

62Decatur County, ININ26,57625,740+5%

63White County, ININ25,16424,643−2%

64Fayette County, ININ23,53324,277−5%

65Scott County, ININ25,05324,181+5%

66Starke County, ININ23,42523,363−1%

67Franklin County, ININ23,28623,087+4%

68Owen County, ININ21,88621,575−1%

69Sullivan County, ININ20,83121,475−1%

70Jay County, ININ20,11821,253−3%

71Spencer County, ININ20,06120,952+3%

72Fulton County, ININ20,09120,836+2%

73Carroll County, ININ20,65520,155−0%

74Orange County, ININ19,83419,840+3%

75Perry County, ININ19,38919,338+2%

76Rush County, ININ16,76717,392−5%

77Parke County, ININ16,64217,339+1%

78Fountain County, ININ17,01317,240−4%

79Vermillion County, ININ15,48816,212−3%

80Tipton County, ININ15,31915,936−4%

81Brown County, ININ15,77715,242+2%

82Newton County, ININ14,18814,244−2%

83Pulaski County, ININ12,46313,402−3%

84Pike County, ININ12,00312,845+0%

85Blackford County, ININ11,73012,766−9%

86Crawford County, ININ10,50910,713−0%

87Switzerland County, ININ10,03710,613+17%

88Martin County, ININ9,85610,334−0%

89Benton County, ININ8,8838,854−6%

90Warren County, ININ8,4748,508+1%

91Union County, ININ6,8637,516+2%

92Ohio County, ININ5,9946,128+9%

SHOWING 1–92 OF 92

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