Founded in Jul 10, 1797, Adams County is one of 88 counties in the state of Ohio. Historically, Adams County was formed from Hamilton County. The city of West Union is the county seat. With FIPS code of 1, Adams County has a population of 27,542 and area of 583.91 square miles (1,512 km2).
List of all cities in Adams County, OH alphabetically
| City/Town | Postal Code | Area Code |
| Adams County, OH | 45144 | 937 |
| Bentonville, OH | 45105 | 937 |
| Blue Creek, OH | 45616 | 937 |
| Bradyville, OH | 45144 | 937 |
| Cherry Fork, OH | 45618 | 937 |
| Lynx, OH | 45650 | 937 |
| 45693 | 937 | |
| Manchester, OH | 45144 | 937 |
| Peebles, OH | 45660 | 937 |
| Seaman, OH | 45679 | 937 |
| Stout, OH | 45684 | 937 |
| West Union, OH | 45693 | 937 |
| Winchester, OH | 45697 | 937 |
| Wrightsville, OH | 45144 | 937 |