Rajnagar is a village in the Gobindpur CD block in the Seraikela Sadar subdivision of the Seraikela Kharsawan district in the Indian state of Jharkhand.
Rajnagar is located at .
The area shown in the map has been described as "part of the southern fringe of the Chotanagpur plateau and is a hilly upland tract". 75.7% of the population lives in the rural areas and 24.3% lives in the urban areas.
<small>Note: The map alongside presents some of the notable locations in the district. All places marked in the map are linked in the larger full screen map.</small>
There is a police station at Rajnagar.
The headquarters of Gobindpur CD block are located at Rajnagar village.
According to the 2011 Census of India, Rajnagar had a total population of 1,806, of which 900 (50%) were males and 906 (50%) were females. Population in the age range 0âÂÂ6 years was 222. The total number of literate persons in Rajnagar was 1,106 (69.82% of the population over 6 years).
(*For language details see Gobindpur block#Language and religion)
Government S.S.High School, Rajnagar, is a Hindi-medium coeducational institution established in 1959. It has facilities for teaching from class IX to class XII. The school has a playground and a library with 212 books.
Kasturba Gandhi Balika Vidyalaya is a Hindi-medium girls only institution established in 2006. It has facilities for teaching in classes VI and XII. The school has a playground, a library with 72 books and has 5 computers for teaching and learning purposes.
Academic English High School is an English-medium coeducational institution established in 1997. It has facilities for teaching from class I to class XII. The school has a playground, a library with 500 books and has 10 computers for teaching and learning purposes.