Fairfield is a somewhat small city located in the state of Iowa. With a population of 9,464 people and three associated neighborhoods, Fairfield is the 45th largest community in Iowa. Fairfield has an unusually large stock of pre-World War II architecture, making it one of the older and more historic cities.

Also of interest is that Fairfield has more people living here who work in computers and math than 95% of the places in the US.

Telecommuters are a relatively large percentage of the workforce: 20.57% of people work from home. While this number may seem small overall, as a fraction of the total workforce it is high relative to the nation. These workers are often telecommuters who work in knowledge-based, white-collar professions. For example, Silicon Valley has large numbers of people who telecommute. Other at-home workers may be self-employed people who operate small businesses out of their homes.

Compared to the rest of the country, citizens of Fairfield spend much less time in their cars: on average, their commute to work is only 12.92 minutes. This also means that noise and pollution levels in the city are less than they would otherwise be.

Fairfield is a small city, and as such doesn't have a public transit system that people use to get to and from their jobs every day.

Fairfield is one of the most well-educated cities in the nation. 49.68% of adults in Fairfield have at least a bachelor's degree. Compare that to the average community in America, which has just 21.84% with a bachelor's degree or higher.

The per capita income in Fairfield in 2022 was $38,109, which is upper middle income relative to Iowa and the nation. This equates to an annual income of $152,436 for a family of four. However, Fairfield contains both very wealthy and poor people as well.

Fairfield is a very ethnically-diverse city. The people who call Fairfield home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Fairfield residents report their race to be White, followed by Asian. Important ancestries of people in Fairfield include German, Irish, English, Swedish, and Norwegian.

Foreign born people are also an important part of Fairfield's cultural character, accounting for 16.94% of the city’s population.

The most common language spoken in Fairfield is English. Other important languages spoken here include Vietnamese and Langs. of India.