Kochgawan is a village in Warisaliganj tehsil in district of Nawada, Bihar, India. As per the data provided by Census of India in 2011, total population of Kochgawan was 7,553 which includes 3,989 males and 3,564 females. Kochgawan covers 708 ha area. Pincode of Kochgawan is N/A.