Simdega is a city in the Indian state of Jharkhand. Simdega is the administrative headquarters of the eponymous district and Subdivision. The city stands at an elevation of approximately 418 metres (1371 feet) above sea level and covers an area of 3,750 km2 (1,450 sq mi). Bounded in the north by Gumla, on the east by Ranchi and West Singhbhum, on the west by Jashpur Nagar, Chhattisgarh and on the south by Rourkela, Odisha. The distance between Rourkela and Simdega is 83 km. It is accessible by road through National Highways from Rourkela and Ranchi. The nearest railway station is Bano railway station.

Simdega block is a CD block that forms an administrative division in the Simdega subdivision of Simdega district, in the Indian state of Jharkhand.