Subbiahpuram is a village in Vilathikulam tehsil in district of Thoothukkudi, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Subbiahpuram was 474 which includes 228 males and 246 females. Subbiahpuram covers 437.44 ha area. Pincode of Subbiahpuram is 628907.