Kamsi Nagaon is a village in Sissibargaon tehsil in district of Dhemaji, Assam, India. As per the data provided by Census of India in 2011, total population of Kamsi Nagaon was 236 which includes 115 males and 121 females. Kamsi Nagaon covers 43.91 ha area. Pincode of Kamsi Nagaon is 786110.