Data / Rankings / Population density / Counties in Ohio

Counties in Ohio by population density

Cuyahoga County had the highest population density of 88 counties in 2024, at 1,041.7 inhabitants per km². Monroe County had the lowest, at 11.1 inhabitants per km². The median was 46.2 inhabitants per km² and the figure for Ohio was 112.1 inhabitants per km². Source: the U.S. Census Bureau.

Highest1,041.7Cuyahoga County
Lowest11.1Monroe County
Median46.288 counties
Ohio112.1History

Top 40 counties, 2024

CSVChart (SVG)

Cuyahoga CountyCuyahoga County: 1,041.7 inhabitants per km²1,041.7Franklin CountyFranklin County: 980.9 inhabitants per km²980.9Hamilton CountyHamilton County: 797.9 inhabitants per km²797.9Summit CountySummit County: 502.4 inhabitants per km²502.4Lucas CountyLucas County: 482.3 inhabitants per km²482.3Montgomery CountyMontgomery County: 449.4 inhabitants per km²449.4Lake CountyLake County: 390.7 inhabitants per km²390.7Butler CountyButler County: 329.2 inhabitants per km²329.2Lorain CountyLorain County: 252.8 inhabitants per km²252.8Stark CountyStark County: 250.7 inhabitants per km²250.7Warren CountyWarren County: 245.3 inhabitants per km²245.3Mahoning CountyMahoning County: 210.9 inhabitants per km²210.9Delaware CountyDelaware County: 206.4 inhabitants per km²206.4Clermont CountyClermont County: 182.8 inhabitants per km²182.8Medina CountyMedina County: 168.8 inhabitants per km²168.8Greene CountyGreene County: 160.7 inhabitants per km²160.7Clark CountyClark County: 132.8 inhabitants per km²132.8Portage CountyPortage County: 129.3 inhabitants per km²129.3Fairfield CountyFairfield County: 128.4 inhabitants per km²128.4Trumbull CountyTrumbull County: 124.9 inhabitants per km²124.9Erie CountyErie County: 113.2 inhabitants per km²113.2Miami CountyMiami County: 106.2 inhabitants per km²106.2Licking CountyLicking County: 104.3 inhabitants per km²104.3Richland CountyRichland County: 97.4 inhabitants per km²97.4Allen CountyAllen County: 96.8 inhabitants per km²96.8Geauga CountyGeauga County: 91.9 inhabitants per km²91.9Wood CountyWood County: 83.3 inhabitants per km²83.3Wayne CountyWayne County: 81.1 inhabitants per km²81.1Columbiana CountyColumbiana County: 72.4 inhabitants per km²72.4Union CountyUnion County: 64.4 inhabitants per km²64.4Tuscarawas CountyTuscarawas County: 62.7 inhabitants per km²62.7Marion CountyMarion County: 62 inhabitants per km²62Jefferson CountyJefferson County: 60.4 inhabitants per km²60.4Ottawa CountyOttawa County: 60.2 inhabitants per km²60.2Sandusky CountySandusky County: 55.5 inhabitants per km²55.5Hancock CountyHancock County: 54.3 inhabitants per km²54.3Ashtabula CountyAshtabula County: 53.2 inhabitants per km²53.2Muskingum CountyMuskingum County: 50.2 inhabitants per km²50.2Athens CountyAthens County: 48.3 inhabitants per km²48.3Pickaway CountyPickaway County: 47.9 inhabitants per km²47.9
inhabitants per km². Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2024
inhabitants per km²		Change on 2023
1Cuyahoga County1,041.7-0.1%
2Franklin County980.9+1.2%
3Hamilton County797.9+0.7%
4Summit County502.4+0.2%
5Lucas County482.3-0.2%
6Montgomery County449.4+0.4%
7Lake County390.7+0.2%
8Butler County329.2+0.8%
9Lorain County252.8+0.7%
10Stark County250.7+0.2%
11Warren County245.3+0.8%
12Mahoning County210.9-0.3%
13Delaware County206.4+2.1%
14Clermont County182.8+1%
15Medina County168.8+0.2%
16Greene County160.7+1.2%
17Clark County132.8+0.6%
18Portage County129.3+0.3%
19Fairfield County128.4+1.3%
20Trumbull County124.9-0.1%
21Erie County113.2-0.2%
22Miami County106.2+0.9%
23Licking County104.3+0.6%
24Richland County97.4+0.1%
25Allen County96.8+0.1%
26Geauga County91.9-0%
27Wood County83.3+0.4%
28Wayne County81.10%
29Columbiana County72.4-0.4%
30Union County64.4+3.1%
31Tuscarawas County62.7+0.3%
32Marion County62+0.2%
33Jefferson County60.4-0.3%
34Ottawa County60.2-0.2%
35Sandusky County55.5-0.1%
36Hancock County54.3+0.1%
37Ashtabula County53.2-0.1%
38Muskingum County50.2+0.2%
39Athens County48.3+0.5%
40Pickaway County47.9+1.8%
41Ashland County47.9+0.6%
42Lawrence County47.7-0.4%
43Belmont County47-0.4%
44Knox County46.7+0.6%
45Huron County45.7+0.1%
46Scioto County45.5-0.3%
47Shelby County45.4+0.3%
48Auglaize County44.2-0.1%
49Ross County42.6-0.4%
50Holmes County40.9+0.8%
51Fulton County40.1+0.3%
52Crawford County39.9+0.1%
53Clinton County39.7+0.1%
54Logan County38.80%
55Seneca County38.3-0%
56Madison County37.9+2.7%
57Preble County37.1+0.4%
58Defiance County36+0.1%
59Washington County35.8-0.1%
60Mercer County35.5+0.4%
61Champaign County34.8-0.1%
62Brown County34.8+0.9%
63Morrow County34.2+1.1%
64Perry County33.8+0.3%
65Williams County33.6-0%
66Darke County33.2+0.1%
67Highland County30.5+0.4%
68Jackson County30.1+0.3%
69Guernsey County28.3+0.5%
70Putnam County27.3-0.2%
71Fayette County27.3-0.2%
72Van Wert County27.2+0.7%
73Carroll County26-0.9%
74Henry County25.5-0.1%
75Coshocton County25.3+0.4%
76Hocking County25.2-0.4%
77Hardin County24.8-0.5%
78Gallia County24+0.1%
79Pike County23.7+0.5%
80Wyandot County20.5+0.4%
81Meigs County19.4-1%
82Adams County18.3+0.5%
83Paulding County17.4+0.3%
84Noble County13.8-0.5%
85Harrison County13.5-1%
86Morgan County12.6-0.1%
87Vinton County11.8+0.7%
88Monroe County11.1-0.8%

Other periods

About this ranking

Resident population divided by land area in km². World Bank figures use mid-year population and land area excluding inland water.

United States: Census Bureau population estimates for 1 July divided by land area (water excluded) from the latest Census Gazetteer files. US tables often give people per square mile; multiply persons per km² by 2.59 to compare.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-09.

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Questions

Which county has the highest population density?

Cuyahoga County, with 1,041.7 inhabitants per km² in 2024, according to the U.S. Census Bureau.

Which county has the lowest population density?

Monroe County, with 11.1 inhabitants per km² in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program resident population on 1 July divided by land area from the latest Census Gazetteer files, persons per km². Retrieved 2026-10-09.

Population density: other rankings

Counties in Ohio: more rankings