Massac County is located in the southern part of the state of Illinois, bordered by the Ohio River to the south. Established in 1843, it is named after the historic Massac site, which was significant during the early settlement of the region. The county seat is Metropolis, known for its proximity to the river and its connection to the Superman comic book character. The county covers an area of approximately 220 square miles and has a population of around 15,000 residents. It features a mix of rural landscapes and small towns, with agriculture playing a key role in the local economy. Outdoor recreational activities are popular, thanks to the nearby Shawnee National Forest and river access.