Dhamailgachh is a village in Dinhata I tehsil in district of Koch Bihar, West Bengal, India. As per the data provided by Census of India in 2011, total population of Dhamailgachh was 32 which includes 16 males and 16 females. Dhamailgachh covers 82.1 ha area. Pincode of Dhamailgachh is 736173.