Mascoutah is a city in St. Clair County, Illinois, United States.

This was disputed with the establishment of a Post Office; the inhabitants were informed that another township in Illinois was already named Mechanicsburg.

The town saw steady growth thanks to the construction of a train depot in 1870, courtesy of the St. Louis and Southeastern Railway (later the Louisville and Nashville).

The largest Turner Hall in Southern Illinois was established in Mascoutah in 1873[5] which served as the center of town social life, and the town constructed its own citizen owned power plant in 1894.

[5] The train depot shut down, the Turner Hall eventually became the chamber of commerce, and the municipal power plant now houses the city's fleet and equipment maintenance department.

Scheve Park has two swimming pools, a splash pad, 6 baseball diamonds (2 with lights), a large dog park, lit sand volleyball court, lit horseshoe pits, two soccer fields, a disc golf course with 18 tee boxes shooting to 9 targets, a skate park, ten pavilions varying in size, and several playground areas.

Scheve Park also has a restored train caboose and dining car that visitors can tour.

Prairie Park has two fishing lakes, 3 lighted colored fountains, picnic tables with grills and a pavilion.