Sihuniya is a village in Itwa tehsil in district of Siddharthnagar, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Sihuniya was 1,516 which includes 706 males and 810 females. Sihuniya covers 118.86 ha area. Pincode of Sihuniya is N/A.