The Johnson County Courthouse in Mountain City, Tennessee's highest county seat, anchors the compact downtown of this remote Appalachian community with a dignified public building serving the legal and administrative needs of the region's roughly 18,000 residents. The courthouse square is the social heart of Mountain City, where farmers, loggers, and community members gather on market days and during county government business. A short walk from the courthouse reaches the town's restaurants, hardware stores, and historic storefronts.