Rajpur Assembly constituency is one of 243 constituencies of legislative assembly of Bihar.

It comes under Buxar Lok Sabha constituency.

[1] Rajpur comprises community blocks of Rajpur & Itarhi; Gram Panchayats Ataon, Kanjharua, Mathila, Mugaon, Kasian & Koransarai of Dumraon CD Block.

[2]