RANKING · 2020 CENSUS · 73 SHOWN OF 73

Largest Finnish population, Ohio counties · 2020

Ohio counties ranked by the number of residents who are Finnish ancestry, from the 2020 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 Ohio that qualify, ranked against each other statewide.

Finnish Americans: full group profile →

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SAME RANKING BYCities States Metros

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 POPULATIONVS 2010

01Cuyahoga County, OHOH1,232,9252,376+11%

02Lake County, OHOH232,2172,209−22%

03Ashtabula County, OHOH96,7131,992−38%

04Franklin County, OHOH1,361,5361,368−21%

05Hamilton County, OHOH838,418927+89%

06Trumbull County, OHOH198,972846−26%

07Summit County, OHOH538,376776−19%

08Lucas County, OHOH423,347758+34%

09Lorain County, OHOH323,219628+29%

10Mahoning County, OHOH224,706434+12%

11Geauga County, OHOH95,676415−8%

12Montgomery County, OHOH539,598382−16%

13Greene County, OHOH174,322355+251%

14Delaware County, OHOH242,032334+14%

15Warren County, OHOH257,181330−21%

16Stark County, OHOH373,771266−24%

17Carroll County, OHOH26,475258–

18Portage County, OHOH163,404251−3%

19Medina County, OHOH185,025248−34%

20Fairfield County, OHOH169,752223+346%

21Butler County, OHOH400,128173−70%

22Wood County, OHOH134,176154−15%

23Clermont County, OHOH216,977151−30%

24Richland County, OHOH124,893134+38%

25Brown County, OHOH44,397114+245%

26Clark County, OHOH135,340101−38%

27Athens County, OHOH63,19797+52%

28Sandusky County, OHOH58,65595+83%

29Tuscarawas County, OHOH92,37391–

30Columbiana County, OHOH99,37787+358%

31Marion County, OHOH65,11585+20%

32Allen County, OHOH100,88184−29%

33Union County, OHOH73,44681−16%

34Licking County, OHOH185,56479−37%

35Ashland County, OHOH52,52364–

36Ottawa County, OHOH39,48161+103%

37Miami County, OHOH112,63461+97%

38Erie County, OHOH73,29655−43%

39Perry County, OHOH35,91852−40%

40Knox County, OHOH64,00244+144%

41Fulton County, OHOH41,85338−42%

42Seneca County, OHOH54,52237–

43Jefferson County, OHOH63,59736+3%

44Wayne County, OHOH116,75835−82%

45Fayette County, OHOH28,55234–

46Hancock County, OHOH75,03432−47%

47Harrison County, OHOH14,07027−7%

48Muskingum County, OHOH87,01425+108%

49Highland County, OHOH43,82324–

50Morrow County, OHOH36,30523–

51Clinton County, OHOH42,30123+77%

52Shelby County, OHOH48,06523+53%

53Champaign County, OHOH38,82021−88%

54Crawford County, OHOH41,89619–

55Hocking County, OHOH27,51218–

56Williams County, OHOH36,54918+50%

57Pickaway County, OHOH62,97817–

58Hardin County, OHOH30,07217+13%

59Logan County, OHOH46,30217−56%

60Auglaize County, OHOH45,90913−75%

61Defiance County, OHOH38,29211−39%

62Jackson County, OHOH32,81711−21%

63Morgan County, OHOH13,62611+10%

64Pike County, OHOH27,06111−77%

65Coshocton County, OHOH37,18810−23%

66Gallia County, OHOH29,07210−88%

67Preble County, OHOH40,66410–

68Guernsey County, OHOH38,3799+0%

69Ross County, OHOH76,4298−71%

70Washington County, OHOH58,3898−68%

71Scioto County, OHOH71,3657–

72Darke County, OHOH51,5205–

73Mercer County, OHOH42,7372–

SHOWING 1–73 OF 73

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