Naugachhia is a town located in the Bhagalpur district of Bihar, India. It is situated within the Mithila region and serves as a local populated center in the state.
According to the 2011 census of India, the town had a population of 49,069. The demographic data indicates that 18% of the residents are under nine years of age. The average literacy rate in Naugachhia is 62%, which is lower than the national average of 74%; specifically, male literacy stands at 69% and female literacy at 55%.