Garhkhatanga is a village in Namkum tehsil in district of Ranchi, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Garhkhatanga was 1,007 which includes 493 males and 514 females. Garhkhatanga covers 390.47 ha area. Pincode of Garhkhatanga is 834003.