Pirmahammadpur is a village in Musahri tehsil in district of Muzaffarpur, Bihar, India. As per the data provided by Census of India in 2011, total population of Pirmahammadpur was 1,155 which includes 607 males and 548 females. Pirmahammadpur covers 122 ha area. Pincode of Pirmahammadpur is N/A.