Ohio counties quiz

The 88 counties in the quiz

They’re the 88 counties of Ohio, as counted by the US Census Bureau. The state capital, Columbus, is in Franklin County.

How to play

In Point mode we name a county and you tap it on the map; in Type mode one lights up and you type its name (accents don’t matter); and in Time trial you get 6 seconds per question. If you miss, we show you where it was, which way it lies and a hint drawn from the data: its size rank and its neighbors.

Each game has 10, 20 or all the questions, and at the end you can practice just the ones you missed. Your best score for each mode is saved in this browser only: neither we nor anyone else can see it, and there’s no sign-up.

The hardest ones

The smallest counties are the hardest, since they barely show on the map: Lake (229 sq mi), Erie (251 sq mi), and Ottawa (255 sq mi). Zoom in with the buttons or two fingers to tap them.

And watch out for look-alike names: Highland and Richland.

Tips to learn them

• The 9 counties bordering West Virginia trace that border on the map: Athens, Belmont, Columbiana, Gallia, Jefferson, Lawrence, Meigs, Monroe, and Washington.
• Only 8 of the 88 counties have a Great Lakes shoreline: find them first along the edge of the map.
• Stark has the most neighbors: it borders 8 counties. Once you place it, you have a landmark for many more.
• Franklin is the most populous (1,361,536 people in 2025) and, together with Cuyahoga and Hamilton, is home to 29% of Ohio’s people.

Playing in class

If you teach in Ohio, start with your school’s county and its neighbors and add a few each day. Otherwise, it’s a good way to get to know the state before studying it.

With the Challenge your class link, everyone gets the same questions in the same order, with no accounts or passwords, and each student sees their own score, time and streak. To practice on paper, there’s a printable worksheet of the same map with an answer key.

List of all 88 counties

1. Adams pop. 27,865
2. Allen pop. 100,881
3. Ashland pop. 52,523
4. Ashtabula pop. 96,713
5. Athens pop. 63,197
6. Auglaize pop. 45,909
7. Belmont pop. 64,434
8. Brown pop. 44,397
9. Butler pop. 400,128
10. Carroll pop. 26,475
11. Champaign pop. 38,820
12. Clark pop. 135,340
13. Clermont pop. 216,977
14. Clinton pop. 42,301
15. Columbiana pop. 99,377
16. Coshocton pop. 37,188
17. Crawford pop. 41,896
18. Cuyahoga pop. 1,232,925
19. Darke pop. 51,520
20. Defiance pop. 38,292
21. Delaware pop. 242,032
22. Erie pop. 73,296
23. Fairfield pop. 169,752
24. Fayette pop. 28,552
25. Franklin pop. 1,361,536
26. Fulton pop. 41,853
27. Gallia pop. 29,072
28. Geauga pop. 95,676
29. Greene pop. 174,322
30. Guernsey pop. 38,379
31. Hamilton pop. 838,418
32. Hancock pop. 75,034
33. Hardin pop. 30,072
34. Harrison pop. 14,070
35. Henry pop. 27,598
36. Highland pop. 43,823
37. Hocking pop. 27,512
38. Holmes pop. 44,970
39. Huron pop. 58,250
40. Jackson pop. 32,817
41. Jefferson pop. 63,597
42. Knox pop. 64,002
43. Lake pop. 232,217
44. Lawrence pop. 55,710
45. Licking pop. 185,564
46. Logan pop. 46,302
47. Lorain pop. 323,219
48. Lucas pop. 423,347
49. Madison pop. 46,985
50. Mahoning pop. 224,706
51. Marion pop. 65,115
52. Medina pop. 185,025
53. Meigs pop. 21,587
54. Mercer pop. 42,737
55. Miami pop. 112,634
56. Monroe pop. 12,994
57. Montgomery pop. 539,598
58. Morgan pop. 13,626
59. Morrow pop. 36,305
60. Muskingum pop. 87,014
61. Noble pop. 14,276
62. Ottawa pop. 39,481
63. Paulding pop. 18,727
64. Perry pop. 35,918
65. Pickaway pop. 62,978
66. Pike pop. 27,061
67. Portage pop. 163,404
68. Preble pop. 40,664
69. Putnam pop. 34,380
70. Richland pop. 124,893
71. Ross pop. 76,429
72. Sandusky pop. 58,655
73. Scioto pop. 71,365
74. Seneca pop. 54,522
75. Shelby pop. 48,065
76. Stark pop. 373,771
77. Summit pop. 538,376
78. Trumbull pop. 198,972
79. Tuscarawas pop. 92,373
80. Union pop. 73,446
81. Van Wert pop. 29,013
82. Vinton pop. 12,645
83. Warren pop. 257,181
84. Washington pop. 58,389
85. Wayne pop. 116,758
86. Williams pop. 36,549
87. Wood pop. 134,176
88. Wyandot pop. 21,567