Siunagar Urf Loharbeni is a village in Sahebganj tehsil in district of Muzaffarpur, Bihar, India. As per the data provided by Census of India in 2011, total population of Siunagar Urf Loharbeni was 773 which includes 412 males and 361 females. Siunagar Urf Loharbeni covers 45 ha area. Pincode of Siunagar Urf Loharbeni is 843125.