Counties in Ohio that I have Visited

There are 88 Counties in Ohio – “The Buckeye State“

Also be sure to see my United States County Counting Page for the rest of the states.

I have visited 66 Counties = 75.0% of Counties in Ohio

Counties visited are colored-in; counties still needing to be visited are blank.  Map created using Mob Rule.

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Twelve Mile Circle Articles Featuring Places in Ohio

Markers designate the Ohio locations featured in Twelve Mile Circle articles.

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Counties in Ohio

Below are the 88 counties in Ohio. Although infrequent, counties sometimes do change so please let me know if any of this information is out of date and I will update it. Those counties that I have visited are highlighted in Red. Readers can also link to any articles manually in this section if the map isn’t working.

1. Adams: Overwhelming Union; Catbird Seat; Serpent Mound
2. Allen
3. Ashland
4. Ashtabula: Largest county in Ohio (703 square miles).
5. Athens: The Healing Chapel
6. Auglaize
7. Belmont
8. Brown: Augusta Ferry
9. Butler: County Tripoint; Exclamatory Towns!
10. Carroll
11. Champaign: Champaign Aviation Museum
12. Clark
13. Clermont: Welcome to Utopia
14. Clinton
15. Columbiana
16. Coshocton: Pathway to Bedford; That Other Warsaw
17. Crawford
18. Cuyahoga: Largest county population in Ohio (1,393,978 people in 2000 Census); Great Lakes; Résumé Bait and Switch; Over the Road; Cleveland-Brooklyn Border; Lucky 7 & the Ghost Kid; Diamondback Brewery
19. Darke: Disunion Averted
20. Defiance: Fort Defiance
21. Delaware
22. Erie: Quad County Towns, Crowdsourced
23. Fairfield: From Camp to Town
24. Fayette
25. Franklin: Corn Cob Sculpture Field; Alphabetical Circle; Ohio Capitals; The Dreadful Road Trip; Columbus Name Symmetry; Misplaced Romans
26. Fulton
27. Gallia
28. Geauga
29. Greene: Battle of Chillicothe; Huffman Prairie
30. Guernsey
31. Hamilton: Twelve Mile House; Zig Zag; International Latitude Observatories; Sayler Park; Canal Becomes Subway; More Presidential County Sorting; Outside of California; Mainstreet Brewing Co.; Rock Bottom Brewery; Twelve Mile House; Coney Island
32. Hancock
33. Hardin
34. Harrison: Custer Monument
35. Henry
36. Highland
37. Hocking
38. Holmes: Highest Religious Affiliation
39. Huron: Quad County Towns, Crowdsourced
40. Jackson: The Jeffersons and Beyond
41. Jefferson
42. Knox
43. Lake: Smallest county in Ohio (229 square miles); Overwhelming Union
44. Lawrence
45. Licking: Basket-Shaped Office Building; Nestling Newark
46. Logan: Campbell Hill (Ohio Highpoint); Oldest Concrete Street; Zane Shawnee Caverns
47. Lorain
48. Lucas: The Other White House
49. Madison
50. Mahoning
51. Marion: Where’s Waldo?
52. Medina
53. Meigs
54. Mercer
55. Miami: Eldean Covered Bridge; Overwhelming Union; WACO Air Museum
56. Monroe
57. Montgomery: America’s Packard Museum; Carillon Historical Park; Day Air Ballpark; Germantown Covered Bridge; Mound Cold War Discovery Center; National Museum of the Air Force; Oregon District; Overwhelming Union; St. Anne’s Hill; Wright-Dunbar Interpretive Center
58. Morgan
59. Morrow
60. Muskingum: Ohio Capitals
61. Noble
62. Ottawa
63. Paulding
64. Perry: Hardly Tropic
65. Pickaway: Square the Circle; Circleville Survived; Pumpkin Water Tower; Hitler Road
66. Pike
67. Portage: Streetsboro
68. Preble: Bordersplit School; County Tripoint
69. Putnam: The Big Bull
70. Richland
71. Ross: Knockemstiff; Ohio Capitals; Perfect Weather
72. Sandusky: Quad County Towns, Crowdsourced
73. Scioto: Portsmouth
74. Seneca: Jeremiah Good Octagon House
75. Shelby: Big Four Bridge
76. Stark: Trump Avenue; Overwhelming Union
77. Summit: Summit of Summit; Lock 1, Ohio & Erie Canal; Portage Lakes
78. Trumbull: Clarence Darrow Octagon House; Right Up to the Line; Presidential Distances
79. Tuscarawas
80. Union: Natural Forces: Magnetism; Overwhelming Union; Union County Covered Bridges
81. Van Wert
82. Vinton: Smallest county population in Ohio (12,806 people in 2000 Census); Hope Iron Furnace; Oreton
83. Warren: Eric Henn Murals
84. Washington: Layman; Campus Martius; Mound Cemetery; Capitolium; Front Street; Riverfront Park
85. Wayne
86. Williams: Father John’s Brewing
87. Wood: Twelve Mile Square Reservation
88. Wyandot

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Quick Facts About Ohio

• Location: East North Central United States. See map above.
• Size⁽¹⁾: 40,861 square miles. Ohio is the 35th largest state. The next larger state is Tennessee and the next smaller state is Virginia.
• Population⁽²⁾: 11,689,442 people. Ohio is the 7th most populous state. The next more populous state is Illinois and the next less populous state is Georgia.
• Population Density: 286.1 people per square mile. Ohio is the 10th most densely populated state. The next more densely populated state is Pennsylvania and the next less densely populated state is California.
• Bordering States: Ohio shares a border with 5 states: Michigan; Indiana; Kentucky; West Virginia and Pennsylvania.
• Admission to the Union: March 1, 1803. Ohio was the 17th state admitted to the Union, after Tennessee and before Louisiana.
• Capital: Columbus.
• Highest Point: 1,550 feet at Campbell Hill. See SummitPost’s Campbell Hill page.
• Lowest Point: 455 Feet at the Ohio River in Hamilton Co.
• Government website: Welcome to Ohio.gov.
• Official Tourism website: Ohio – Find It Here.
• Still not enough? See Wikipedia’s Ohio page.

Sources:

(1) Wikipedia: List of U.S. states and territories by area. Land area only.
(2) Wikipedia: List of states and territories of the United States by population. Estimated population on July 1, 2019.