Town guide
Mason
Illinois · IL · Effingham County
About Mason
Town in Illinois, United States1865Established
323Population
1.3 sq miArea
591 ftElevation
Mason is an incorporated town in Effingham County, Illinois, United States. The population was 323 at the 2020 census. It was named after Roswell Mason, an official of the Illinois Central Railroad. Mason is part of the Effingham, IL Micropolitan Statistical Area.
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