Fairfield, IA
![](https://upload.wikimedia.org/wikipedia/commons/8/83/Central_Park%2C_Fairfield%2C_Iowa.jpg)
Fairfield is a city in, and the county seat of, Jefferson County, Iowa, United States. It has a population of 9,416 people, according to the 2020 census. The median family income is $46,138, with 10% of families below the poverty line. Source: Wikipedia