Fairfield is a larger medium-sized city located in the state of California. With a population of 119,338 people and 29 associated neighborhoods, Fairfield is the 53rd largest community in California.

Housing costs in Fairfield are among some of the highest in the nation, although real estate prices here don't compare to real estate prices in the most expensive communities in California.

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.

A relatively large number of people in Fairfield telecommute to their jobs. Overall, about 9.82% of the workforce works from home. While this may seem like a small number, as a fraction of the total workforce it ranks among the highest in the country. 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.

One downside of living in Fairfield is that it can take a long time to commute to work. In Fairfield, the average commute to work is 30.96 minutes, which is quite a bit higher than the national average.

The overall education level of Fairfield is somewhat higher than in the average US city of 21.84%: 27.77% of adults 25 and older in the city have at least a bachelor's degree.

The per capita income in Fairfield in 2022 was $40,600, which is middle income relative to California, and upper middle income relative to the rest of the US. This equates to an annual income of $162,400 for a family of four. However, Fairfield contains both very wealthy and poor people as well.

Fairfield is an extremely ethnically-diverse city. The people who call Fairfield home describe themselves as belonging to a variety of racial and ethnic groups. People of Hispanic or Latino origin are the most prevalent group in Fairfield, accounting for 29.89% of the city’s residents (people of Hispanic or Latino origin can be of any race). The greatest number of Fairfield residents report their race to be White, followed by Asian. Important ancestries of people in Fairfield include European, Irish, German, English, and African.

Foreign born people are also an important part of Fairfield's cultural character, accounting for 22.25% of the city’s population.

The most common language spoken in Fairfield is English. Other important languages spoken here include Spanish and Tagalog.