Fairfield is a city in and the county seat of Wayne County, Illinois, United States, and the location of Frontier Community College. The population was 4,883 at the 2020 census. History Fairfield is most famous for being the hometown of the "friendly" people, and for the Shelton Brothers Gang, notorious bootleggers who fought it out with the Harrisburg, Illinois-based Birger Gang to control criminal activities in Southern Illinois. During the first half of the 20th century, gang leaders Carl, Earl and Bernie Shelton made Fairfield a household name. Based on testimony of Charlie Birger himself, the Shelton Brothers were convicted for a 1925 unsolved mail carrier robbery of $15,000 and were sentenced to 25 years. They were released a few years later. Birger dominated bootlegging in Southern Illinois until he himself was hanged in Benton for the murder of West City Mayor Joe Adams in 1928. After serving their time, the Shelton brothers built a new criminal empire. Based out of East St Louis, one of the most prosperous cities of its day, they controlled all vice from Peoria and southward. They met their demise at the hands of the Chicago mob and an insider Charles "Blackie" Harris. A land dispute led to Blackie joining forces with the Mob to kill off members of the Shelton gang. His most notable victim was Carl Shelton, the leader. He was ambushed several miles southeast of Fairfield, shot from his Jeep. Bernie was killed at his Peoria roadhouse. Earl moved to Jacksonville, Florida and became a successful land speculator. Geography Fairfield is located at (38.380390, −88.365818). According to the 2010 census, Fairfield has a total area of , of which (or 99.16%) is land and (or 0.84%) is water. Climate Demographics As of the census of 2000, there were 5,421 people, 2,495 households, and 1,494 families residing in the city. The population density was . There were 2,727 housing units at an average density of . The racial makeup of the city was 98.40% White, 0.09% African American, 0.26% Native American, 0.63% Asian, 0.02% Pacific Islander, 0.06% from other races, and 0.55% from two or more races. Hispanic or Latino of any race were 0.42% of the population. There were 2,495 households, out of which 24.8% had children under the age of 18 living with them, 46.4% were married couples living together, 10.8% had a female householder with no husband present, and 40.1%