Kaul Dehri is a village in Sahar tehsil in district of Bhojpur, Bihar, India. As per the data provided by Census of India in 2011, total population of Kaul Dehri was 5,740 which includes 2,951 males and 2,789 females. Kaul Dehri covers 312 ha area. Pincode of Kaul Dehri is 802222.