Sarjanpur (Sarjanpur) is a village in Sultanganj block of Mainpuri district, Uttar Pradesh, India. As of 2011, it had a population of 830, in 144 households.

As of 2011, Sarjanpur had a population of 830, in 144 households. This population was 56.1% male (466) and 43.9% female (364). The 0-6 age group numbered 149 (86 male and 63 female), or 18.0% of the total population. 574 residents were members of Scheduled Castes, or 69.2% of the total.

The 1981 census recorded Sarjanpur as having a population of 403 people, in 77 households.

The 1961 census recorded Sarjanpur as comprising 2 hamlets, with a total population of 288 people (163 male and 125 female), in 66 households and 46 physical houses. The area of the village was given as 445 acres.

As of 2011, Sarjanpur had 2 primary schools; it did not have any healthcare facilities. Drinking water was provided by tap, hand pump, and tube well/borehole; there were no public toilets. The village had a post office but no public library; there was at least some access to electricity for all purposes. Streets were made of both kachcha and pakka materials.