Koalidaha 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 Koalidaha was 5,616 which includes 2,929 males and 2,687 females. Koalidaha covers 579.9 ha area. Pincode of Koalidaha is 736135.