Dewanagaon is a village in Mangaldoi tehsil in district of Darrang, Assam, India. As per the data provided by Census of India in 2011, total population of Dewanagaon was 500 which includes 259 males and 241 females. Dewanagaon covers 255.96 ha area. Pincode of Dewanagaon is N/A.