Founded on Jan 13, 1846, Madison County is one of 99 counties in the state of Iowa. Historically, Madison County was formed from Polk County. The city of Winterset is the county seat. With FIPS code of 121, Madison County has a population of 16,773 and area of 561 square miles (1,453 km2).
List of all cities in Madison County, IA alphabetically
| City/Town | Postal Code | Area Code |
| Bevington, IA | 50033 | 641 |
| Conger, IA | 50240 | 641 |
| Earlham, IA | 50072 | 515 |
| Hanley, IA | 50240 | 641 |
| Macksburg, IA | 50155 | 641 |
| Patterson, IA | 50218 | 641 |
| Peru, IA | 50222 | 641 |
| Pitzer, IA | 50072 | 515 |
| Saint Charles, IA | 50240 | 641 |
| Truro, IA | 50257 | 641 |
| Wick, IA | 50240 | 641 |
| Winterset, IA | 50273 | 515 |