Johnson County, Administrative county in southern Illinois, United States.
Johnson County is an administrative county in southern Illinois that spans a substantial area. The landscape features rolling hills, forests, and waterways that define its character.
The county was founded in 1812, carved out from neighboring Randolph County. It was named after Richard Mentor Johnson, a political figure of that era.
Local communities are rooted in farming, where family operations have shaped the land and daily life for generations. This agricultural identity remains central to how people here connect with their surroundings.
Vienna serves as the county seat and center for local government services. Interstate 24 and Interstate 57 connect the area, making travel between different parts straightforward.
A section of the Cypress Creek National Wildlife Refuge is located within the county, protecting diverse ecosystems. Visitors can observe rare plant and animal species in their natural habitats here.
Location: Illinois
Inception: 1812
Capital city: Vienna
Shares border with: Williamson County, Massac County, Pulaski County, Union County, Saline County, Pope County
GPS coordinates: 37.46000,-88.87000
Latest update: December 7, 2025 20:24
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Lusk Creek Canyon
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Johnson County Courthouse
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Ed M. Stotlar House
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Raum Lookout Tower
31.3 kmVisited this place? Tap the stars to rate it and share your experience / photos with the community! Try now! You can cancel it anytime.
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