Kothawan is a village in Dinapur Cum Khagaul tehsil in district of Patna, Bihar, India. As per the data provided by Census of India in 2011, total population of Kothawan was 3,201 which includes 1,674 males and 1,527 females. Kothawan covers 100 ha area. Pincode of Kothawan is 801105.