On July 10, 1797, Adams County, named in honor of the incumbent President, John Adams, became the seventh county of the Northwest Territory and the third county of what was to be the State of Ohio.

Originally the county included what is now, Pike, Ross, Fayette, Pickaway, Madison, Franklin, Union, and Delaware counties, as well as parts of Scioto, Highland, Brown, Clinton, Fairfield, Clark, Champaigne, Hardin, Marion, Morrow, Knox, and Licking Counties. As these new counties were created, Adams County was eventually reduced to its present size.

Adams County is bordered on its sides by, Brown, Highland, Pike, and Scioto Counties. To the South (across the Ohio River) it is bordered by Lewis and Mason Counties in Kentucky.

read more...