I have visited 29 Counties = 33.0% of Counties in Ohio
Ohio Map
Quick facts about Ohio
Location: See map on the right side of the page.
Size(1): 40,948 square miles. Ohio is the 35th largest state. The next larger state is Tennessee and the next smaller state is Kentucky.
Population(2): 11,464,042 people. Ohio is the 7th most populous state. The next more populous state is Pennsylvania and the next less populous state is Michigan.
Population Density: 279.97 people per square mile. Ohio is the 9th most densely populated state. The next more densely populated state is Florida and the next less densely populated state is Pennsylvania.
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.
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 Although infrequent, counties sometimes do change so please let me know if any of this information is out of date and I will update it.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 in bold. If I have a photograph or other item associated with a county somewhere else on my website, there will also be a link.
Adams
Allen
Ashland
Ashtabula: Largest county in Ohio (703 square miles).
Athens
Auglaize
Belmont
Brown
Butler
Carroll
Champion
Clark
Clermont
Clinton
Columbiana
Coshocton
Crawford
Cuyahoga: Largest county population in Ohio (1,393,978 people in 2000 Census); Diamondback Brewery