Simrau () is a village in Karhal block of Mainpuri district, Uttar Pradesh, India. As of 2011, it has a population of 697, in 146 households.
As of 2011, Simrau had a population of 697, in 146 households. This population was 54.5% male (380) and 45.5% female (317). The 0-6 age group numbered 79 (40 male and 39 female), or 11.3% of the total population. 23 residents were members of Scheduled Castes, or 3.3% of the total.
The 1981 census recorded Simrau as having a population of 508 people, in 76 households.
The 1961 census recorded Simrau comprising 2 hamlets, with a total population of 317 people (184 male and 133 female), in 63 households and 58 physical houses. The area of the village was given as 454 acres.
As of 2011, Simrau had 1 primary school; it did not have any healthcare facilities. Drinking water was provided by hand pump; 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.