Simariatanr is a village in Topchanchi tehsil in district of Dhanbad, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Simariatanr was 608 which includes 343 males and 265 females. Simariatanr covers 39 ha area. Pincode of Simariatanr is 828109.