Ranking of Ohio Counties By Population in 2012
Updated on July 26, 2024.
Based on the US Census Vintage data estimates, in 2012, the Population for Ohio was 11.55M. Among all Ohio counties, Cuyahoga County had the highest population (1.27M), followed by Franklin County (1.20M), and Hamilton County (802.56K).
The chart below shows the top 10 counties, and the table below shows the ranking of all Ohio counties.
You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.
Related Topics: Ohio Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage), 2012 Census.
See this for other years:
Ranking of Ohio Counties By Population in 2012
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| Rank | County | Population |
|---|---|---|
| 1 | Cuyahoga County | 1266271 |
| 2 | Franklin County | 1199257 |
| 3 | Hamilton County | 802564 |
| 4 | Summit County | 540806 |
| 5 | Montgomery County | 534464 |
| 6 | Lucas County | 436846 |
| 7 | Stark County | 374914 |
| 8 | Butler County | 370628 |
| 9 | Lorain County | 301757 |
| 10 | Mahoning County | 235689 |
| 11 | Lake County | 229572 |
| 12 | Warren County | 217293 |
| 13 | Trumbull County | 207245 |
| 14 | Clermont County | 199526 |
| 15 | Delaware County | 181234 |
| 16 | Medina County | 173648 |
| 17 | Licking County | 167636 |
| 18 | Greene County | 164403 |
| 19 | Portage County | 161418 |
| 20 | Fairfield County | 147314 |
| 21 | Clark County | 137198 |
| 22 | Wood County | 128471 |
| 23 | Richland County | 122645 |
| 24 | Wayne County | 115058 |
| 25 | Columbiana County | 106652 |
| 26 | Allen County | 105251 |
| 27 | Miami County | 102947 |
| 28 | Ashtabula County | 100274 |
| 29 | Geauga County | 93770 |
| 30 | Tuscarawas County | 92426 |
| 31 | Muskingum County | 85803 |
| 32 | Scioto County | 78808 |
| 33 | Ross County | 77359 |
| 34 | Erie County | 76440 |
| 35 | Hancock County | 75478 |
| 36 | Belmont County | 69728 |
| 37 | Jefferson County | 68557 |
| 38 | Marion County | 66301 |
| 39 | Athens County | 64633 |
| 40 | Lawrence County | 62177 |
| 41 | Washington County | 61472 |
| 42 | Knox County | 60781 |
| 43 | Sandusky County | 60467 |
| 44 | Huron County | 59220 |
| 45 | Pickaway County | 56235 |
| 46 | Seneca County | 56117 |
| 47 | Ashland County | 53245 |
| 48 | Union County | 52798 |
| 49 | Darke County | 52524 |
| 50 | Shelby County | 49158 |
| 51 | Auglaize County | 45787 |
| 52 | Logan County | 45412 |
| 53 | Brown County | 44289 |
| 54 | Holmes County | 43130 |
| 55 | Madison County | 42996 |
| 56 | Highland County | 42966 |
| 57 | Crawford County | 42774 |
| 58 | Fulton County | 42330 |
| 59 | Clinton County | 41829 |
| 60 | Preble County | 41821 |
| 61 | Ottawa County | 41246 |
| 62 | Mercer County | 40710 |
| 63 | Guernsey County | 39886 |
| 64 | Champaign County | 39579 |
| 65 | Defiance County | 38845 |
| 66 | Williams County | 37531 |
| 67 | Coshocton County | 36821 |
| 68 | Perry County | 35983 |
| 69 | Morrow County | 34839 |
| 70 | Putnam County | 34207 |
| 71 | Jackson County | 32869 |
| 72 | Hardin County | 31630 |
| 73 | Gallia County | 30881 |
| 74 | Hocking County | 29310 |
| 75 | Fayette County | 28770 |
| 76 | Van Wert County | 28642 |
| 77 | Carroll County | 28551 |
| 78 | Pike County | 28365 |
| 79 | Adams County | 28288 |
| 80 | Henry County | 27826 |
| 81 | Meigs County | 23575 |
| 82 | Wyandot County | 22544 |
| 83 | Paulding County | 19245 |
| 84 | Harrison County | 15679 |
| 85 | Morgan County | 14929 |
| 86 | Noble County | 14676 |
| 87 | Monroe County | 14509 |
| 88 | Vinton County | 13223 |