Dia Parmeswar is a village in Simri tehsil in district of Buxar, Bihar, India. As per the data provided by Census of India in 2011, total population of Dia Parmeswar was 2,302 which includes 1,184 males and 1,118 females. Dia Parmeswar covers 306 ha area. Pincode of Dia Parmeswar is 802111.