Dhan Diha is a village in Koilwar tehsil in district of Bhojpur, Bihar, India. As per the data provided by Census of India in 2011, total population of Dhan Diha was 5,861 which includes 3,080 males and 2,781 females. Dhan Diha covers 669 ha area. Pincode of Dhan Diha is 802163.