Ranking of Ohio Counties By Population Density from Census 2020
According to the data from the US 2020 Census, as at April 2020, among all Ohio counties, Cuyahoga County had the highest population density per square mile (2.77K people per sqr mile), followed by Franklin County (2.49K people per sqr mile), and Hamilton County (2.05K people per sqr mile).
On the other hand, Monroe County had the lowest population density (29.37 people per sqr mile), followed by Vinton County (31.04 people per sqr mile), and Morgan County (33.14 people per sqr mile).
The chart below shows the top 10 counties with high population density, and the table below shows the ranking of all Ohio counties.
You can also see similar ranking of counties information for other states as well as for all counties in the United States.
| Rank | County | Population Density |
|---|---|---|
| 1 | Cuyahoga County | 2766.38 |
| 2 | Franklin County | 2486.41 |
| 3 | Hamilton County | 2048.90 |
| 4 | Summit County | 1309.20 |
| 5 | Lucas County | 1269.72 |
| 6 | Montgomery County | 1164.64 |
| 7 | Lake County | 1014.54 |
| 8 | Butler County | 836.74 |
| 9 | Stark County | 651.62 |
| 10 | Lorain County | 638.00 |
| 11 | Warren County | 603.69 |
| 12 | Mahoning County | 555.58 |
| 13 | Delaware County | 483.19 |
| 14 | Clermont County | 460.94 |
| 15 | Medina County | 432.95 |
| 16 | Greene County | 406.15 |
| 17 | Clark County | 342.68 |
| 18 | Portage County | 331.94 |
| 19 | Trumbull County | 326.77 |
| 20 | Fairfield County | 315.09 |
| 21 | Erie County | 300.94 |
| 22 | Miami County | 267.57 |
| 23 | Licking County | 261.59 |
| 24 | Allen County | 253.90 |
| 25 | Richland County | 252.28 |
| 26 | Geauga County | 238.31 |
| 27 | Wood County | 214.28 |
| 28 | Wayne County | 210.70 |
| 29 | Columbiana County | 191.53 |
| 30 | Tuscarawas County | 164.37 |
| 31 | Marion County | 161.86 |
| 32 | Jefferson County | 159.88 |
| 33 | Ottawa County | 158.47 |
| 34 | Union County | 145.41 |
| 35 | Sandusky County | 144.27 |
| 36 | Hancock County | 141.01 |
| 37 | Ashtabula County | 138.98 |
| 38 | Muskingum County | 130.03 |
| 39 | Lawrence County | 128.45 |
| 40 | Belmont County | 124.97 |
| 41 | Ashland County | 123.99 |
| 42 | Athens County | 123.96 |
| 43 | Scioto County | 121.30 |
| 44 | Knox County | 119.36 |
| 45 | Huron County | 118.98 |
| 46 | Shelby County | 118.30 |
| 47 | Pickaway County | 116.79 |
| 48 | Auglaize County | 115.65 |
| 49 | Ross County | 111.86 |
| 50 | Fulton County | 105.35 |
| 51 | Holmes County | 104.64 |
| 52 | Crawford County | 104.60 |
| 53 | Clinton County | 102.80 |
| 54 | Logan County | 100.65 |
| 55 | Seneca County | 99.94 |
| 56 | Preble County | 96.64 |
| 57 | Washington County | 94.58 |
| 58 | Madison County | 94.08 |
| 59 | Defiance County | 93.05 |
| 60 | Mercer County | 91.96 |
| 61 | Champaign County | 90.25 |
| 62 | Brown County | 89.22 |
| 63 | Williams County | 88.20 |
| 64 | Perry County | 86.80 |
| 65 | Darke County | 86.74 |
| 66 | Morrow County | 86.06 |
| 67 | Highland County | 78.32 |
| 68 | Jackson County | 77.69 |
| 69 | Guernsey County | 73.60 |
| 70 | Putnam County | 71.40 |
| 71 | Fayette County | 71.25 |
| 72 | Van Wert County | 70.71 |
| 73 | Carroll County | 67.72 |
| 74 | Hocking County | 66.57 |
| 75 | Henry County | 66.49 |
| 76 | Hardin County | 65.27 |
| 77 | Coshocton County | 64.92 |
| 78 | Gallia County | 62.63 |
| 79 | Pike County | 61.52 |
| 80 | Wyandot County | 53.82 |
| 81 | Meigs County | 51.64 |
| 82 | Adams County | 47.06 |
| 83 | Paulding County | 45.16 |
| 84 | Harrison County | 36.00 |
| 85 | Noble County | 35.46 |
| 86 | Morgan County | 33.14 |
| 87 | Vinton County | 31.04 |
| 88 | Monroe County | 29.37 |