Fairfield is a city in western Jefferson County, Alabama, United States. It is part of the Birmingham metropolitan area and is located southeast of Pleasant Grove. The population was 11,117 at the 2010 census.
This city was founded in 1910 in which the featured speaker at the dedication ceremony was former President Theodore Roosevelt. It was originally named Corey, after an executive of U.S. Steel Corporation. The name was later changed to the city in which the President of U.S. Steel lived, Fairfield, Connecticut. It was planned as a model city by the Tennessee Coal, Iron and Railroad Company to house workers in their new Fairfield Works plant, now owned by U.S. Steel, similar to its northeastern city of Ensley.
It was incorporated on January 1, 1919.
In May 2020, the city entered bankruptcy. Jefferson County had declared bankruptcy in 2011.
According to the U.S. Census Bureau, the city has a total area of 3.5 square miles (9.1 km2), all land.
At the 2000 census, there were 12,381 people, 4,600 households, and 3,141 families living in the city.