Lake Monticello, a private gated community, is a census-designated place (CDP) in Fluvanna County, Virginia, United States.

[3] The community is centered on a man-made lake of the same name, which is formed by a dam on a short tributary of the nearby Rivanna River.

Lake Monticello is part of the Charlottesville Metropolitan Statistical Area.

[4] It is bordered to the northwest by the Albemarle County line, to the northeast by the Rivanna River, to the south by Riverside Drive and South Boston Road, and to the southwest by Virginia State Route 53, the Thomas Jefferson Parkway.

[5] VA 53 leads northwest 14 miles (23 km) to Charlottesville, passing Monticello, the estate of Thomas Jefferson, along the way.