RANKING · 2020 CENSUS · 88 SHOWN OF 88

Largest households, Ohio counties · 2020

Ohio counties ranked by average household size (2023 ACS). This list covers the 88 counties in Ohio that qualify, ranked against each other statewide.

OhioAll states All rankings

SAME RANKING BYCities States Metros ZIP codes

RELATEDMost expensive homes Cheapest homes Highest median rent Lowest median rent Highest homeownership rate Highest renter share

YEAR2010 2020 2024

RANKPLACESTATEPOPAVERAGE HOUSEHOLD SIZEVS 2000

01Holmes County, OHOH44,9703.49–

02Delaware County, OHOH242,0322.84–

03Perry County, OHOH35,9182.70–

04Pickaway County, OHOH62,9782.70–

05Fairfield County, OHOH169,7522.68–

06Morrow County, OHOH36,3052.67–

07Warren County, OHOH257,1812.67–

08Licking County, OHOH185,5642.66–

09Union County, OHOH73,4462.64–

10Adams County, OHOH27,8652.63–

11Butler County, OHOH400,1282.63–

12Geauga County, OHOH95,6762.62–

13Madison County, OHOH46,9852.60–

14Shelby County, OHOH48,0652.58–

15Clermont County, OHOH216,9772.57–

16Gallia County, OHOH29,0722.57–

17Lawrence County, OHOH55,7102.55–

18Medina County, OHOH185,0252.55–

19Miami County, OHOH112,6342.55–

20Highland County, OHOH43,8232.54–

21Wayne County, OHOH116,7582.53–

22Fulton County, OHOH41,8532.52–

23Knox County, OHOH64,0022.52–

24Mercer County, OHOH42,7372.52–

25Putnam County, OHOH34,3802.52–

26Ashland County, OHOH52,5232.50–

27Athens County, OHOH63,1972.50–

28Meigs County, OHOH21,5872.50–

29Huron County, OHOH58,2502.49–

30Muskingum County, OHOH87,0142.49–

31Pike County, OHOH27,0612.49–

32Coshocton County, OHOH37,1882.48–

33Vinton County, OHOH12,6452.48–

34Champaign County, OHOH38,8202.47–

35Hardin County, OHOH30,0722.47–

36Jackson County, OHOH32,8172.47–

37Lorain County, OHOH323,2192.47–

38Portage County, OHOH163,4042.47–

39Preble County, OHOH40,6642.47–

40Tuscarawas County, OHOH92,3732.47–

41Belmont County, OHOH64,4342.46–

42Franklin County, OHOH1,361,5362.46–

43Wood County, OHOH134,1762.45–

44Ross County, OHOH76,4292.44–

45Ashtabula County, OHOH96,7132.43–

46Clinton County, OHOH42,3012.43–

47Defiance County, OHOH38,2922.43–

48Noble County, OHOH14,2762.43–

49Scioto County, OHOH71,3652.43–

50Marion County, OHOH65,1152.42–

51Paulding County, OHOH18,7272.42–

52Allen County, OHOH100,8812.41–

53Brown County, OHOH44,3972.41–

54Fayette County, OHOH28,5522.41–

55Greene County, OHOH174,3222.41–

56Henry County, OHOH27,5982.41–

57Hocking County, OHOH27,5122.41–

58Sandusky County, OHOH58,6552.41–

59Logan County, OHOH46,3022.41–

60Darke County, OHOH51,5202.40–

61Van Wert County, OHOH29,0132.40–

62Clark County, OHOH135,3402.39–

63Harrison County, OHOH14,0702.39–

64Seneca County, OHOH54,5222.39–

65Auglaize County, OHOH45,9092.38–

66Wyandot County, OHOH21,5672.38–

67Columbiana County, OHOH99,3772.37–

68Guernsey County, OHOH38,3792.37–

69Morgan County, OHOH13,6262.37–

70Carroll County, OHOH26,4752.37–

71Washington County, OHOH58,3892.36–

72Stark County, OHOH373,7712.35–

73Lake County, OHOH232,2172.35–

74Erie County, OHOH73,2962.34–

75Monroe County, OHOH12,9942.34–

76Williams County, OHOH36,5492.34–

77Summit County, OHOH538,3762.34–

78Richland County, OHOH124,8932.33–

79Lucas County, OHOH423,3472.32–

80Jefferson County, OHOH63,5972.31–

81Hamilton County, OHOH838,4182.31–

82Hancock County, OHOH75,0342.30–

83Crawford County, OHOH41,8962.29–

84Trumbull County, OHOH198,9722.27–

85Montgomery County, OHOH539,5982.26–

86Mahoning County, OHOH224,7062.24–

87Cuyahoga County, OHOH1,232,9252.21–

88Ottawa County, OHOH39,4812.18–

SHOWING 1–88 OF 88

Download CSV (full list, 88 rows)

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