Massac County is a county in the U.S. state of Illinois. According to the 2020 census, it had a population of 14,169. Established in 1843 and named for a French fort founded in the 18th century, its county seat is Metropolis. Massac County is included in the Paducah, KY-IL Metropolitan Statistical Area. It is located along the Ohio River, in the portion of the state known locally as "Little Egypt".
Massac County Courthouse in Metropolis
Fort Massac is a French colonial and early National-era fort on the Ohio River in Massac County, Illinois.
The 2002 reconstruction of the 1802 Fort Massac, with the Ohio River in the background. The original, 1757 French fort foundation impression, can be seen at center-right, beyond the trees.
Fort Massac foundation impression, photograph pre-1920.