Founded on Jan 15, 1851, Adair County is one of 99 counties in the state of Iowa. Historically, Adair County was formed from Cass County. The city of Greenfield is the county seat. With FIPS code of 1, Adair County has a population of 7,541 and area of 569 square miles (1,474 km2).
List of all cities in Adair County, IA alphabetically
| City/Town | Postal Code | Area Code |
| Adair, IA | 50002 | 641 |
| Bridgewater, IA | 50837 | 641 |
| Fontanelle, IA | 50846 | 641 |
| Greenfield, IA | 50849 | 641 |
| Hebron, IA | 50858 | 641 |
| North Branch, IA | 50002 | 641 |
| Orient, IA | 50858 | 641 |
| Stanzel, IA | 50849 | 641 |
| Zion, IA | 50858 | 641 |