Monticello, Illinois, a charming small town in Piatt County with a population of around 5,941 (2020 census), serves as the county seat and embodies the heart of Central Illinois. Founded in 1837 and named after Thomas Jefferson’s estate, Monticello blends rich history with vibrant community life. Visitors and residents alike enjoy attractions like the Monticello Railway Museum, offering scenic train rides from May to October, and the nearby Robert Allerton Park, a 1,517-acre natural gem with woodlands, formal gardens, and a historic mansion. The town’s historic Victorian homes along “Millionaire’s Row” and lively downtown, featuring events like First Friday on the Square, showcase its cultural and communal spirit. With a backdrop of agricultural heritage and modern amenities, Monticello offers a welcoming blend of tradition, natural beauty, and small-town warmth.

Monticello currently has 23 single family homes for sale with an average list price of $384,600 and 14 lots for sale with an average list price of $69,264.29. The average annual property tax for Monticello is $3,636.13.