Washington County, established in 1818, is located in southern Illinois about 50 miles east of St. Louis. The county seat is Nashville, a peaceful town surrounded by farmland and small lakes. Other communities include Okawville, Ashley, and Addieville. The county’s economy revolves around agriculture, light industry, and local trade. Its landscape consists of flat farmland, rolling hills, and wooded creeks that give it a pleasant rural charm. Housing here is affordable — existing homes usually range $130,000–$200,000, while newer or larger properties can reach $250K–$300K. Building new, including land and utilities, costs around $240K–$350K. The area is family-friendly, safe, and community-oriented, with easy access to city amenities in St. Louis. Okawville’s historic spas and mineral springs draw tourists, adding a unique touch to this agricultural county. Washington County is ideal for those who value space, small-town life, and affordability.