Santokhgarh is an important and mandi town of Una District. Santokhgarh was first for the first time declared urban area in 1971 Census. Santokhgarh is situated southern side of the District Headquarter of Una District. The area of the town is 2.83 Sq. km. It has the characteristics of plain areas and has the hinterland of fertile irrigated agriculture land. The town serves as a original trade centre. It act as a gateway to the Pradesh since ancient time. Santokhgarh is situated on the bank of Swan River.