No 1 Sumdia is a village in Subansiri tehsil in district of Dhemaji, Assam, India. As per the data provided by Census of India in 2011, total population of No 1 Sumdia was 334 which includes 168 males and 166 females. No 1 Sumdia covers 178 ha area. Pincode of No 1 Sumdia is 787055.