RANKING · 2000 CENSUS · 88 SHOWN OF 88

Most densely populated, Ohio counties · 2000

Ohio counties ranked by residents per square mile (2023). This list covers the 88 counties in Ohio that qualify, ranked against each other statewide.

Flip the list · Most sparsely populated, US counties →

OhioAll states All rankings

SAME RANKING BYCities States Metros

RELATEDLargest by population Fastest growing Fastest shrinking Most sparsely populated Best broadband access Worst broadband access

YEAR1990 2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION DENSITYVS 2000

01Cuyahoga County, OHOH1,232,9253,049+0%

02Hamilton County, OHOH838,4182,085+0%

03Franklin County, OHOH1,361,5362,008+0%

04Lucas County, OHOH423,3471,340+0%

05Summit County, OHOH538,3761,315+0%

06Montgomery County, OHOH539,5981,212+0%

07Lake County, OHOH232,217992+0%

08Butler County, OHOH400,128713+0%

09Stark County, OHOH373,771657+0%

10Mahoning County, OHOH224,706626+0%

11Lorain County, OHOH323,219580+0%

12Warren County, OHOH257,181395+0%

13Clermont County, OHOH216,977393+0%

14Clark County, OHOH135,340366+0%

15Trumbull County, OHOH198,972365+0%

16Medina County, OHOH185,025359+0%

17Greene County, OHOH174,322358+0%

18Erie County, OHOH73,296317+0%

19Portage County, OHOH163,404312+0%

20Allen County, OHOH100,881269+0%

21Richland County, OHOH124,893260+0%

22Delaware County, OHOH242,032248+0%

23Fairfield County, OHOH169,752243+0%

24Miami County, OHOH112,634243+0%

25Geauga County, OHOH95,676227+0%

26Licking County, OHOH185,564213+0%

27Columbiana County, OHOH99,377211+0%

28Wayne County, OHOH116,758201+0%

29Wood County, OHOH134,176196+0%

30Jefferson County, OHOH63,597181+0%

31Marion County, OHOH65,115164+0%

32Ottawa County, OHOH39,481161+0%

33Tuscarawas County, OHOH92,373160+0%

34Sandusky County, OHOH58,655151+0%

35Ashtabula County, OHOH96,713146+0%

36Lawrence County, OHOH55,710137+0%

37Hancock County, OHOH75,034134+0%

38Belmont County, OHOH64,434132+0%

39Scioto County, OHOH71,365130+0%

40Muskingum County, OHOH87,014127+0%

41Ashland County, OHOH52,523124+0%

42Athens County, OHOH63,197124+0%

43Huron County, OHOH58,250121+0%

44Shelby County, OHOH48,065118+0%

45Crawford County, OHOH41,896117+0%

46Auglaize County, OHOH45,909116+0%

47Seneca County, OHOH54,522106+0%

48Ross County, OHOH76,429106+0%

49Pickaway County, OHOH62,978105+0%

50Fulton County, OHOH41,853104+0%

51Knox County, OHOH64,002104+0%

52Logan County, OHOH46,302100+0%

53Washington County, OHOH58,389100+0%

54Preble County, OHOH40,664100+0%

55Clinton County, OHOH42,30199+0%

56Defiance County, OHOH38,29296+0%

57Union County, OHOH73,44695+0%

58Williams County, OHOH36,54993+0%

59Holmes County, OHOH44,97092+0%

60Champaign County, OHOH38,82091+0%

61Darke County, OHOH51,52089+0%

62Mercer County, OHOH42,73788+0%

63Brown County, OHOH44,39786+0%

64Madison County, OHOH46,98586+0%

65Perry County, OHOH35,91884+0%

66Guernsey County, OHOH38,37978+0%

67Morrow County, OHOH36,30578+0%

68Jackson County, OHOH32,81778+0%

69Highland County, OHOH43,82374+0%

70Carroll County, OHOH26,47573+0%

71Van Wert County, OHOH29,01372+0%

72Putnam County, OHOH34,38072+0%

73Henry County, OHOH27,59870+0%

74Fayette County, OHOH28,55270+0%

75Hardin County, OHOH30,07268+0%

76Hocking County, OHOH27,51267+0%

77Gallia County, OHOH29,07267+0%

78Coshocton County, OHOH37,18865+0%

79Pike County, OHOH27,06163+0%

80Wyandot County, OHOH21,56756+0%

81Meigs County, OHOH21,58754+0%

82Paulding County, OHOH18,72749+0%

83Adams County, OHOH27,86547+0%

84Harrison County, OHOH14,07039+0%

85Morgan County, OHOH13,62636+0%

86Noble County, OHOH14,27635+0%

87Monroe County, OHOH12,99433+0%

88Vinton County, OHOH12,64531+0%

SHOWING 1–88 OF 88

Download CSV (full list, 88 rows)

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