Mangaldai Gaon 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 Mangaldai Gaon was 2,879 which includes 1,497 males and 1,382 females. Mangaldai Gaon covers 83.76 ha area. Pincode of Mangaldai Gaon is 784125.