Fairfield is a very small city located in the state of Texas. With a population of 2,901 people and four associated neighborhoods, Fairfield is the 536th largest community in Texas.

The citizens of Fairfield are slightly less educated than the national average of 21.84% for the average city or town: 15.77% of adults in Fairfield have a bachelor's degree or advanced degree

The per capita income in Fairfield in 2022 was $27,665, which is middle income relative to Texas, and lower middle income relative to the rest of the US. This equates to an annual income of $110,660 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. The greatest number of Fairfield residents report their race to be White, followed by Black or African-American. Fairfield also has a sizeable Hispanic population (people of Hispanic origin can be of any race). People of Hispanic or Latino origin account for 27.94% of the city’s residents. Important ancestries of people in Fairfield include Irish, English, German, Scots-Irish, and Welsh.

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