Garhmara Gaon 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 Garhmara Gaon was 117 which includes 64 males and 53 females. Garhmara Gaon covers 101.29 ha area. Pincode of Garhmara Gaon is 786110.