Rohtas District is one of the thirty-eight districts of Bihar state, India. It came into existence when Shahabad District was bifurcated into Bhojpur & Rohtas in 1972. Administrative headquarter of the district is Sasaram. Rohtas district has the highest literacy in Bihar. The literacy rate of Rohtas district which is 73.37% as per 2011 census is highest among all 38 districts of Bihar. Rohtas district also has one of the highest forest cover among all 38 districts of Bihar. The Rohtas district is a part of Patna Division, and it has an area of 3850 km², a population of 2,959,918 (2011 census), and a population density of 763 persons per km². Languages spoken here are Bhojpuri, Hindi and English.
