What is population of fairfield iowa?

As an AI language model, I don't have access to real-time information. However, according to the United States Census Bureau, the estimated population of Fairfield, Iowa in 2020 was 9,351. This represents a slight increase from the 2010 census count of 9,464. Fairfield is the county seat of Jefferson County, Iowa and is located in the southeastern part of the state. It is known for its vibrant community of artists and alternative health practitioners, as well as its location near Maharishi International University, a transcendental meditation institution.