Deonathpatti is a village in Sursand tehsil in district of Sitamarhi, Bihar, India. As per the data provided by Census of India in 2011, total population of Deonathpatti was 827 which includes 442 males and 385 females. Deonathpatti covers 96.4 ha area. Pincode of Deonathpatti is N/A.