RANKING · 2020 CENSUS · 73 SHOWN OF 73

Highest Finnish population share, Ohio counties · 2020

Ohio counties ranked by the share of all residents who are Finnish ancestry (2023 American Community Survey). A concentration measure: Finnish residents as a percentage of total population. This list covers the 73 counties in Ohio that qualify, ranked against each other statewide.

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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

RANKPLACESTATEPOPFINNISH SHAREVS 2000

01Ashtabula County, OHOH96,7132.0%–

02Lake County, OHOH232,2171.0%–

03Carroll County, OHOH26,4750.9%–

04Geauga County, OHOH95,6760.4%–

05Trumbull County, OHOH198,9720.4%–

06Brown County, OHOH44,3970.3%–

07Greene County, OHOH174,3220.2%–

08Lorain County, OHOH323,2190.2%–

09Cuyahoga County, OHOH1,232,9250.2%–

10Mahoning County, OHOH224,7060.2%–

11Harrison County, OHOH14,0700.2%–

12Lucas County, OHOH423,3470.2%–

13Delaware County, OHOH242,0320.2%–

14Sandusky County, OHOH58,6550.2%–

15Portage County, OHOH163,4040.2%–

16Ottawa County, OHOH39,4810.2%–

17Athens County, OHOH63,1970.1%–

18Perry County, OHOH35,9180.1%–

19Summit County, OHOH538,3760.1%–

20Fairfield County, OHOH169,7520.1%–

21Warren County, OHOH257,1810.1%–

22Union County, OHOH73,4460.1%–

23Medina County, OHOH185,0250.1%–

24Marion County, OHOH65,1150.1%–

25Ashland County, OHOH52,5230.1%–

26Fayette County, OHOH28,5520.1%–

27Wood County, OHOH134,1760.1%–

28Hamilton County, OHOH838,4180.1%–

29Richland County, OHOH124,8930.1%–

30Franklin County, OHOH1,361,5360.1%–

31Tuscarawas County, OHOH92,3730.1%–

32Fulton County, OHOH41,8530.1%–

33Columbiana County, OHOH99,3770.1%–

34Allen County, OHOH100,8810.1%–

35Morgan County, OHOH13,6260.1%–

36Clark County, OHOH135,3400.1%–

37Erie County, OHOH73,2960.1%–

38Clermont County, OHOH216,9770.1%–

39Montgomery County, OHOH539,5980.1%–

40Stark County, OHOH373,7710.1%–

41Knox County, OHOH64,0020.1%–

42Seneca County, OHOH54,5220.1%–

43Morrow County, OHOH36,3050.1%–

44Hocking County, OHOH27,5120.1%–

45Miami County, OHOH112,6340.1%–

46Highland County, OHOH43,8230.1%–

47Clinton County, OHOH42,3010.1%–

48Jefferson County, OHOH63,5970.1%–

49Hardin County, OHOH30,0720.1%–

50Champaign County, OHOH38,8200.1%–

51Williams County, OHOH36,5490.0%–

52Shelby County, OHOH48,0650.0%–

53Crawford County, OHOH41,8960.0%–

54Butler County, OHOH400,1280.0%–

55Licking County, OHOH185,5640.0%–

56Hancock County, OHOH75,0340.0%–

57Pike County, OHOH27,0610.0%–

58Logan County, OHOH46,3020.0%–

59Jackson County, OHOH32,8170.0%–

60Gallia County, OHOH29,0720.0%–

61Wayne County, OHOH116,7580.0%–

62Pickaway County, OHOH62,9780.0%–

63Muskingum County, OHOH87,0140.0%–

64Defiance County, OHOH38,2920.0%–

65Auglaize County, OHOH45,9090.0%–

66Coshocton County, OHOH37,1880.0%–

67Preble County, OHOH40,6640.0%–

68Guernsey County, OHOH38,3790.0%–

69Washington County, OHOH58,3890.0%–

70Ross County, OHOH76,4290.0%–

71Darke County, OHOH51,5200.0%–

72Scioto County, OHOH71,3650.0%–

73Mercer County, OHOH42,7370.0%–

SHOWING 1–73 OF 73

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