Demar Gachha is a village in Balagarh tehsil in district of Hugli, West Bengal, India. As per the data provided by Census of India in 2011, total population of Demar Gachha was 1,702 which includes 884 males and 818 females. Demar Gachha covers 215.54 ha area. Pincode of Demar Gachha is 712123.