

It was named after the Auglaize River, which means “fallen timbers river” in the Shawnee Indian language. Auglaize CountyĪuglaize County was established on February 14, 1848, and was formed from Allen, Mercer, Darke, Hardin, Logan, Shelby, and Van Wert Counties. The county has a population of 62,056 and covers an area of 506.76 sq mi (1,313 km2). Athens CountyĪthens County was established on March 1, 1805, and was formed from Washington County. It has a population of 97,337 and covers an area of 702.44 square miles. The county was named after the Ashtabula River, which means “fish river” in an Algonquian language.

The county was formed from portions of Trumbull and Geauga counties. Ashtabula CountyĪshtabula County was established on June 7, 1807, and its county seat is Jefferson. It has a population of 52,316 and covers an area of 424.37 square miles. It was named after Ashland, the home of U.S. The county was formed from portions of Wayne, Richland, Huron, and Lorain counties. Ashland CountyĪshland County was established on February 24, 1846, and its county seat is Ashland. It has a population of 101,670 and covers an area of 404.43 square miles. The county was named after John Allen, a War of 1812 colonel. Allen CountyĪllen County was established on March 1, 1820, and its county seat is Lima. It has a population of 27,542 and covers an area of 583.91 square miles.

The county was named after John Adams, the second president of the United States. Adams County was established on July 10, 1797, and its county seat is West Union.
