Ohio / Counties by Population

Ohio Counties by Population

Below are the 88 Ohio counties sorted by population from 1 to 88 . The population data are from the 2021 Population Estimates Program and 2020 American Community Survey. You can copy and paste this list directly into your favorite spreadsheet program. Don't you just adore lovely numbers listed nicely in columns & rows? We do!

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Rank County Population
1 Franklin County 1,321,414
2 Cuyahoga County 1,249,387
3 Hamilton County 826,139
4 Summit County 537,633
5 Montgomery County 535,840
6 Lucas County 429,191
7 Butler County 390,234
8 Stark County 373,834
9 Lorain County 315,595
10 Warren County 246,553
11 Lake County 232,023
12 Mahoning County 226,762
13 Delaware County 220,740
14 Clermont County 209,642
15 Trumbull County 201,335
16 Medina County 183,092
17 Licking County 180,401
18 Greene County 168,412
19 Portage County 162,382
20 Fairfield County 161,064
21 Clark County 135,633
22 Wood County 132,472
23 Richland County 125,195
24 Wayne County 116,710
25 Miami County 109,264
26 Allen County 101,670
27 Columbiana County 101,310
28 Ashtabula County 97,337
29 Geauga County 95,565
30 Tuscarawas County 92,500
31 Muskingum County 86,408
32 Ross County 76,891
33 Erie County 74,852
34 Hancock County 74,656
35 Scioto County 73,346
36 Belmont County 65,849
37 Marion County 65,291
38 Union County 64,971
39 Jefferson County 64,789
40 Knox County 62,897
41 Athens County 62,056
42 Washington County 59,423
43 Pickaway County 59,333
44 Sandusky County 58,715
45 Huron County 58,367
46 Lawrence County 57,445
47 Seneca County 54,906
48 Ashland County 52,316
49 Darke County 51,597
50 Shelby County 47,977
51 Auglaize County 46,141
52 Logan County 46,035
53 Madison County 44,386
54 Holmes County 44,271
55 Brown County 43,662
56 Highland County 43,354
57 Fulton County 42,450
58 Mercer County 42,309
59 Clinton County 42,004
60 Crawford County 41,754
61 Preble County 40,867
62 Ottawa County 40,104
63 Champaign County 38,699
64 Guernsey County 38,287
65 Defiance County 38,144
66 Williams County 36,716
67 Coshocton County 36,618
68 Perry County 35,460
69 Morrow County 35,151
70 Putnam County 34,318
71 Jackson County 32,511
72 Hardin County 30,621
73 Gallia County 29,158
74 Fayette County 28,906
75 Van Wert County 28,732
76 Hocking County 28,097
77 Adams County 27,542
78 Henry County 27,538
79 Pike County 27,089
80 Carroll County 26,691
81 Meigs County 22,049
82 Wyandot County 21,708
83 Paulding County 18,871
84 Harrison County 14,477
85 Noble County 14,176
86 Morgan County 13,682
87 Monroe County 13,329
88 Vinton County 12,696

United States Census Bureau. B01001 SEX BY AGE, 2020 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 17 March 2022. http://www.census.gov/.

United States Census Bureau. Annual Estimates of the Resident Population: April 1, 2020 to July 1, 2021. U.S. Census Bureau, Population Division. Web. May 2022. http://www.census.gov/.

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