Ramaihar

As of 2011, Ramaihar had a population of 1,244, in 210 households.^[1]: 107 This population was 52.5% male (653) and 47.5% female (591). The 0-6 age group numbered 218 (130 male and 88 female), or 17.5% of the total population. 214 residents were members of Scheduled Castes, or 17.2% of the total.^{[2]: 88–9}

The 1981 census recorded Ramaihar as having a population of 548 people, in 112 households.^{[3]: 146–7}

The 1961 census recorded Ramaihar as comprising 1 hamlet, with a total population of 358 people (188 male and 170 female), in 76 households and 62 physical houses. The area of the village was given as 94 acres.^{[4]: lxxviii}

As of 2011, Ramaihar had 2 primary schools; it did not have any healthcare facilities. Drinking water was provided by hand pump and tube well/borehole; there were no public toilets. The village did not have a post office or public library; there was at least some access to electricity for all purposes. Streets were made of both kachcha and pakka materials.^{[1]: 107–12}