Robhnadih is a village in Jainagar tehsil in district of Kodarma, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Robhnadih was 1,263 which includes 644 males and 619 females. Robhnadih covers 140.18 ha area. Pincode of Robhnadih is 825409.