After Indian Independence in 1947, the rulers of Koriya and Chang Bhakar acceded to the Union of India on 1 January 1948 and both were made part of Surguja District of Madhya Pradesh state.

The general height of the lower tableland is 550 m (1800 feet) above sea level.

[3] According to the 2011 census Koriya district has a population of 658,917,[5] roughly equal to the nation of Montenegro[6] or the US state of Vermont.

The original inhabitants of Korea district were the Kols, Gonds and Bhuinhars (Pando).

These migrants include the Cherva, Rajwars, Sahu, Ahir, Gwalas, Oraon, Gadaria (Gaderi), Koir, Bargah, Basods, Muslims, Kahars, Kunbi, Kewats, Guptas, Jaiswal, Schedule Caste, Agrawals, and Jains, and panika.

The main festivals of India such as Diwali, Dashehra and Holi are also celebrated in Korea District.

Some other festivals are also special among the Koriyan communities, such as Ganga Dashera, Charta, Nuakhai and Surhul.