Kurthi Diha 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 Kurthi Diha was 527 which includes 249 males and 278 females. Kurthi Diha covers 75.1 ha area. Pincode of Kurthi Diha is N/A.