Ismailpur ( Ismāīlpur) is a village in Barnahal block of Mainpuri district, Uttar Pradesh, India. As of 2011, it had a population of 603, in 115 households.

As of 2011, Ismailpur had a population of 603, in 115 households. This population was 53.6% male (323) and 46.4% female (280). The 0-6 age group numbered 98 (51 male and 47 female), or 16.3% of the total population. 71 residents were members of Scheduled Castes, or 11.8% of the total.

The 1961 census recorded Ismailpur as comprising 1 hamlet, with a total population of 243 people (137 male and 106 female), in 56 households and 36 physical houses. The area of the village was given as 309 acres.

As of 2011, Ismailpur had 1 primary school; it did not have any kind of healthcare facility. Drinking water was provided by hand pump and tube well; there were no public toilets. The village had a post office, as well as at least some access to electricity for all purposes. There was no public library. Streets were made of a mix of both kachcha and pakka materials.