Dumariya is a village in Karma Tanr Vidyasagar tehsil in district of Jamtara, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Dumariya was 1,228 which includes 624 males and 604 females. Dumariya covers 116.67 ha area. Pincode of Dumariya is 815352.