Bilaspur is a district of Himachal Pradesh, India. Its capital is in the town of Bilaspur. The district has an area of 1,167 km2, and a population of 381,956. As of 2011 it is the third least populous district of Himachal Pradesh, after Lahul and Spiti and Kinnaur. The district has the famous Govind Sagar Lake on the Sutlej River which acts as the reservoir for the Bhakra and Nangal Dam project.