Danapur is one of 243 constituencies of legislative assembly of Bihar.

It comes under Pataliputra Lok Sabha constituency along with other assembly constituencies viz.

Masaurhi, Maner, Phulwari, Paliganj and Bikram.

[1] Danapur comprises CD Block Danapur-Cum-Khagaul.

[2] The diara (riverine) area is also part of Danapur assembly constituency.