Columbia, formerly known as Point of Fork, is an unincorporated community and census designated place in Fluvanna County, Virginia, United States, at the confluence of the James and Rivanna rivers. Following a referendum, Columbia was dissolved as an incorporated town – until that time the smallest in Virginia – on July 1, 2016. As of the 2010 census, the town's population was 83, up from 49 at the 2000 census.

Fluvanna County is a county located in the Piedmont region of the Commonwealth of Virginia, United States. As of the 2020 census, the population was 27,249. Its county seat is Palmyra, while the most populous community is the census designated place of Lake Monticello.