The 1951 census recorded Ramnagar as comprising 1 hamlet, with a total population of 340 people (162 male and 178 female), in 64 households and 55 physical houses.[4] The area of the village was given as 316 acres.[4] 25 residents were literate, 22 male and 3 female.[4] The village was listed as belonging to the pargana of Aldemau and the thana of Dostpur.[4]
The 1961 census recorded Ramnagar as comprising 1 hamlet, with a total population of 370 people (185 male and 185 female), in 67 households and 61 physical houses.[5] The area of the village was given as 316 acres.[5]
The 1981 census recorded Ramnagar as having a population of 523 people, in 86 households, and having an area of 127.89 hectares.[6] The main staple foods were listed as wheat and rice.[6]
The 1991 census recorded Ramnagar as having a total population of 661 people (342 male and 319 female), in 97 households and 95 physical houses.[3] The area of the village was listed as 115.43 hectares.[3] Members of the 0-6 age group numbered 131, or 20% of the total; this group was 53% male (70) and 47% female (61).[3] Members of scheduled castes numbered 285, or 43% of the village's total population, while no members of scheduled tribes were recorded.[3] The literacy rate of the village was 39% (144 men and 62 women, counting only people age 7 and up).[3] 231 people were classified as main workers (167 men and 64 women), while 33 people were classified as marginal workers (all women); the remaining 397 residents were non-workers.[3] The breakdown of main workers by employment category was as follows: 122 cultivators (i.e. people who owned or leased their own land); 93 agricultural labourers (i.e. people who worked someone else's land in return for payment); 0 workers in livestock, forestry, fishing, hunting, plantations, orchards, etc.; 0 in mining and quarrying; 0 household industry workers; 4 workers employed in other manufacturing, processing, service, and repair roles; 1 construction worker; 2 employed in trade and commerce; 0 employed in transport, storage, and communications; and 9 in other services.[3]
