RANKING · 2024 ACS · 73 SHOWN OF 73

Largest Czech population, Indiana counties

Indiana counties ranked by the number of residents who are Czech ancestry, from the 2024 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 73 counties in Indiana that qualify, ranked against each other statewide. The median across all 73 is 46. Biggest climber in the top 100 since 2020: DeKalb County, IN, up 36 places to #24.

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RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPCZECH POPULATIONVS 2010

01Lake County, ININ504,6121,726−29%

02▲1Marion County, ININ992,1961,559−5%

03▼1Hamilton County, ININ387,0361,457+28%

04Porter County, ININ176,0491,428+24%

05St. Joseph County, ININ272,861983−1%

06▲1LaPorte County, ININ111,294827−11%

07▲2Tippecanoe County, ININ190,456790+32%

08▼2Allen County, ININ402,329557−52%

09▼1Monroe County, ININ143,345464−46%

10▲12Hendricks County, ININ193,510322−26%

11▼1Elkhart County, ININ208,774302−67%

12▲13Kosciusko County, ININ80,892284+816%

13Johnson County, ININ174,262265+26%

14▼2Starke County, ININ23,425227−46%

15▲1Vigo County, ININ106,512227−41%

16▼5Vanderburgh County, ININ181,995216−29%

17▲10Boone County, ININ80,689178−8%

18▲12Delaware County, ININ113,106170+27%

19▲5Hancock County, ININ90,969146+106%

20▲14Howard County, ININ83,904128+4%

21▲24Floyd County, ININ82,153103+134%

22▲20Montgomery County, ININ38,954103+415%

23▼6Clark County, ININ130,45183−42%

24▲36DeKalb County, ININ44,53572+60%

25▼5Bartholomew County, ININ85,72970−74%

26Randolph County, ININ24,43867+294%

27▲10White County, ININ25,16459−44%

28Sullivan County, ININ20,83157−58%

29▲9Huntington County, ININ37,22457−46%

30▲2Warrick County, ININ66,80357−48%

31▼17Wayne County, ININ66,16957−11%

32▲34Newton County, ININ14,18850−66%

33▲16Brown County, ININ15,77749+444%

34▼13Morgan County, ININ74,96748−60%

35▲4Carroll County, ININ20,65546+53%

36▲20Clay County, ININ26,41046+557%

37▲25Harrison County, ININ40,43746+77%

38▼5Pulaski County, ININ12,46343−58%

39▲5Vermillion County, ININ15,48843−48%

40▼11Miami County, ININ34,48741−72%

41▼5Steuben County, ININ34,79940−84%

42▲4Fulton County, ININ20,09140−42%

43▼28Jasper County, ININ33,89438−83%

44Scott County, ININ25,05338−12%

45▼26Madison County, ININ135,08837−81%

46▼28Putnam County, ININ37,87637−77%

47▼16Cass County, ININ37,83635−61%

48Shelby County, ININ45,88232−6%

49▲15Whitley County, ININ35,04632+19%

50▲17Dearborn County, ININ51,60931−46%

51▲8Warren County, ININ8,47431+675%

52Parke County, ININ16,64229+107%

53▲5Wells County, ININ28,88324+167%

54▲21Clinton County, ININ33,32221−30%

55Posey County, ININ24,98821−88%

56Spencer County, ININ20,06121−80%

57Jay County, ININ20,11819–

58▼23LaGrange County, ININ41,30519+58%

59▼8Lawrence County, ININ45,56817−54%

60▼17Henry County, ININ49,13715−69%

61Rush County, ININ16,76715+88%

62▼9Grant County, ININ66,52414−72%

63▼9Daviess County, ININ34,20913−52%

64▼41Noble County, ININ47,93713−85%

65▲13Wabash County, ININ30,71311−81%

66▼25Gibson County, ININ33,09111−78%

67▼39Marshall County, ININ46,59911−97%

68▼7Fountain County, ININ17,01310−75%

69Switzerland County, ININ10,03710−83%

70▲2Jefferson County, ININ33,2797−36%

71▲2Blackford County, ININ11,7306−83%

72▲2Owen County, ININ21,8866−33%

73▲4Crawford County, ININ10,5092–

SHOWING 1–73 OF 73

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES