sefton postcode nswst Home ›› Postcode Finder ›› NSWST ›› Sefton Sefton local listingsThe suburb of Sefton is located in NSW and has a postcode of 2162. Free sefton business listing! 1Sefton High SchoolCnr Munro & Hector Sts 02 964448002Sefton Infants School180-194 Rodd St 02 964440793Immaculate Heart Primary School10 Kerrinea Rd 02 96443555 View more business listings in sefton Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.