Lake Vermilion is a 1,000 acres (400 ha) reservoir located in Vermilion County, Illinois.

It was built for water supply, fishing, and recreation purposes.

The nearest city is Danville, in eastern Illinois.

[2] Lake Vermilion is managed by the Vermilion County Conservation District (VCCD) for bass, catfish, and crappie.

The rules of the lake allow unlimited-horsepower marine boating, jetskiing, and waterskiing.