Dumarjoa is a village in Noamundi tehsil in district of Pashchimi Singhbhum, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Dumarjoa was 964 which includes 489 males and 475 females. Dumarjoa covers 971.48 ha area. Pincode of Dumarjoa is 833218.