Khamhauri is a village in Maharajganj tehsil in district of Siwan, Bihar, India. As per the data provided by Census of India in 2011, total population of Khamhauri was 3,155 which includes 1,476 males and 1,679 females. Khamhauri covers 205.91 ha area. Pincode of Khamhauri is N/A.