Karmatanr is a village in Chandrapura tehsil in district of Bokaro, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Karmatanr was 2,713 which includes 1,380 males and 1,333 females. Karmatanr covers 132 ha area. Pincode of Karmatanr is 828307.