 According to the 2011 Census of India Santaldih Power Project Townn had a total population of 2,507 of which 1,371 (55%) were males and 1,136 (45%) were females.There were 208 persons in the age range of 0 to 6 years.The total number of literate people in Santaldih Thermal Power Township was 2,217 (92.49% of the population over 6 years).