As of 2011, Nisgar has a population of 2,352 people, in 432 households.[2] It has one primary school and no healthcare facilities, and does not host a permanent market or a weekly haat.[2] On Kartik Purnima, the full moon during the month of Kartik, Nisgar hosts a small bathing fair in the Ganges called the Kalika fair.[3]
The 1951 census recorded Nisgar as comprising 2 hamlets, with a total population of 1,088 people (540 male and 548 female), in 216 households and 208 physical houses.[5] The area of the village was given as 871 acres.[5] 262 residents were literate, 193 male and 69 female.[5] The village was listed as belonging to the pargana of Sareni and the thana of Sareni.[5] Nisgar had a primary school at that point, which on 1 January had 85 students in attendance.[5]
The 1961 census recorded Nisgar as comprising 2 hamlets, with a total population of 1,282 people (621 male and 661 female), in 255 households and 226 physical houses.[6] The area of the village was given as 871 acres,[6]
The 1981 census recorded Nisgar as having a population of 1,644 people, in 299 households, and having an area of 384.87 hectares.[4] The main staple foods were given as wheat and gram.[4]
The 1991 census recorded Nisgar Mu. as having a total population of 1,842 people (918 male and 924 female), in 298 households and 297 physical houses.[7] The area of the village was listed as 339 hectares.[7] Members of the 0-6 age group numbered 338, or 18% of the total; this group was 51% male (173) and 49% female (165).[7] Members of scheduled castes made up 28% of the village's population, while no members of scheduled tribes were recorded.[7] The literacy rate of the village was 35% (444 men and 199 women).[7] 544 people were classified as main workers (442 men and 102 women), while 0 people were classified as marginal workers; the remaining 1,298 residents were non-workers.[7] The breakdown of main workers by employment category was as follows: 257 cultivators (i.e. people who owned or leased their own land); 196 agricultural labourers (i.e. people who worked someone else's land in return for payment); 1 worker in livestock, forestry, fishing, hunting, plantations, orchards, etc.; 0 in mining and quarrying; 4 household industry workers; 6 workers employed in other manufacturing, processing, service, and repair roles; 1 construction worker; 34 employed in trade and commerce; 3 employed in transport, storage, and communications; and 42 in other services.[7]
