Phulwaria is a village in Raghunathpur tehsil in district of Siwan, Bihar, India. As per the data provided by Census of India in 2011, total population of Phulwaria was 3,827 which includes 1,995 males and 1,832 females. Phulwaria covers 544 ha area. Pincode of Phulwaria is 841504.