Rampur Dih is a village in Hanumannagar tehsil in district of Darbhanga, Bihar, India. As per the data provided by Census of India in 2011, total population of Rampur Dih was 3,638 which includes 1,957 males and 1,681 females. Rampur Dih covers 1522 ha area. Pincode of Rampur Dih is 846001.