Kusmadih is a village in Sariya tehsil in district of Giridih, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Kusmadih was 2,614 which includes 1,345 males and 1,269 females. Kusmadih covers 461 ha area. Pincode of Kusmadih is 825320.