greythorn postcode vicch Home ›› Postcode Finder ›› VICCH ›› Greythorn Greythorn local listingsThe suburb of Greythorn is located in VIC and has a postcode of 3104. Free greythorn business listing! 1St Bridget's School36 Sweyn St 03 98576394 View more business listings in greythorn Search and find other Postcodes in Victoria or widen the search to Postcodes in Australia.