rainbow postcode vicch Home ›› Postcode Finder ›› VICCH ›› Rainbow Rainbow local listingsThe suburb of Rainbow is located in VIC and has a postcode of 3424. Free rainbow business listing! 1Rainbow Secondary College17 Albert St 03 539510632Rainbow Primary School30 Bow St 03 53951460 View more business listings in rainbow Search and find other Postcodes in Victoria or widen the search to Postcodes in Australia.