Monticello is a city located in Jefferson County, Florida, United States. It is the county seat of Jefferson County and has a population of approximately 2,530 as of 2020. Monticello is known for its historic architecture, including many antebellum homes and buildings. The city is also home to the Monticello Opera House, a cultural center that hosts various performances and events. The local economy is based on agriculture, with tobacco, timber, and farming being significant industries. Monticello offers a small-town charm and a close-knit community atmosphere.