Nakau () is a village in Karhal block of Mainpuri district, Uttar Pradesh. As of 2011, it has a population of 2,652, in 490 households.
As of 2011, Nakau had a population of 2,652, in 490 households. This population was 53.0% male (1,405) and 47.0% female (1,247). The 0-6 age group numbered 423 (231 male and 192 female), or 16.0% of the total population. 780 residents were members of Scheduled Castes, or 29.4% of the total.
The 1981 census recorded Nakau as having a population of 1,495 people, in 248 households.
The 1961 census recorded Nakau as comprising 4 hamlets, with a total population of 1,033 people (551 male and 482 female), in 174 households and 151 physical houses. The area of the village was given as 1,070 acres.
As of 2011, Nakau 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 and public library, as well as at least some access to electricity for all purposes. Streets were made of pakka materials.