RANKING · 2010 CENSUS · 73 SHOWN OF 73

Highest Romanian population share, Ohio counties · 2010

Ohio counties ranked by the share of all residents who are Romanian ancestry (2023 American Community Survey). A concentration measure: Romanian 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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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

RANKPLACESTATEPOPROMANIAN SHAREVS 2000

01Stark County, OHOH373,7711.0%–

02Mahoning County, OHOH224,7060.7%–

03Trumbull County, OHOH198,9720.6%–

04Cuyahoga County, OHOH1,232,9250.6%–

05Medina County, OHOH185,0250.5%–

06Summit County, OHOH538,3760.4%–

07Portage County, OHOH163,4040.4%–

08Columbiana County, OHOH99,3770.4%–

09Lake County, OHOH232,2170.4%–

10Lorain County, OHOH323,2190.3%–

11Ashtabula County, OHOH96,7130.3%–

12Geauga County, OHOH95,6760.3%–

13Delaware County, OHOH242,0320.3%–

14Carroll County, OHOH26,4750.2%–

15Fairfield County, OHOH169,7520.2%–

16Tuscarawas County, OHOH92,3730.2%–

17Athens County, OHOH63,1970.2%–

18Wood County, OHOH134,1760.2%–

19Erie County, OHOH73,2960.2%–

20Jefferson County, OHOH63,5970.2%–

21Huron County, OHOH58,2500.2%–

22Lucas County, OHOH423,3470.2%–

23Franklin County, OHOH1,361,5360.2%–

24Hardin County, OHOH30,0720.2%–

25Greene County, OHOH174,3220.2%–

26Hamilton County, OHOH838,4180.2%–

27Clermont County, OHOH216,9770.2%–

28Richland County, OHOH124,8930.1%–

29Clark County, OHOH135,3400.1%–

30Montgomery County, OHOH539,5980.1%–

31Henry County, OHOH27,5980.1%–

32Darke County, OHOH51,5200.1%–

33Wyandot County, OHOH21,5670.1%–

34Wayne County, OHOH116,7580.1%–

35Marion County, OHOH65,1150.1%–

36Ottawa County, OHOH39,4810.1%–

37Belmont County, OHOH64,4340.1%–

38Miami County, OHOH112,6340.1%–

39Licking County, OHOH185,5640.1%–

40Union County, OHOH73,4460.1%–

41Auglaize County, OHOH45,9090.1%–

42Fulton County, OHOH41,8530.1%–

43Warren County, OHOH257,1810.1%–

44Butler County, OHOH400,1280.1%–

45Washington County, OHOH58,3890.1%–

46Noble County, OHOH14,2760.1%–

47Hancock County, OHOH75,0340.1%–

48Highland County, OHOH43,8230.1%–

49Coshocton County, OHOH37,1880.1%–

50Ashland County, OHOH52,5230.1%–

51Defiance County, OHOH38,2920.1%–

52Crawford County, OHOH41,8960.1%–

53Fayette County, OHOH28,5520.1%–

54Guernsey County, OHOH38,3790.0%–

55Brown County, OHOH44,3970.0%–

56Logan County, OHOH46,3020.0%–

57Seneca County, OHOH54,5220.0%–

58Hocking County, OHOH27,5120.0%–

59Madison County, OHOH46,9850.0%–

60Knox County, OHOH64,0020.0%–

61Muskingum County, OHOH87,0140.0%–

62Morrow County, OHOH36,3050.0%–

63Sandusky County, OHOH58,6550.0%–

64Williams County, OHOH36,5490.0%–

65Ross County, OHOH76,4290.0%–

66Pickaway County, OHOH62,9780.0%–

67Lawrence County, OHOH55,7100.0%–

68Allen County, OHOH100,8810.0%–

69Preble County, OHOH40,6640.0%–

70Adams County, OHOH27,8650.0%–

71Champaign County, OHOH38,8200.0%–

72Putnam County, OHOH34,3800.0%–

73Clinton County, OHOH42,3010.0%–

SHOWING 1–73 OF 73

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