casterton postcode vicch Home ›› Postcode Finder ›› VICCH ›› Casterton Casterton local listingsThe suburb of Casterton is located in VIC and has a postcode of 3311. Free casterton business listing! 1WesternVIC Local Business DirectoryCasterton VIC, Australia 00000000002Casterton Primary SchoolMcPherson St 03 558115223Casterton Secondary College27-29 Mount Gambier Rd 03 55811588 View more business listings in casterton Search and find other Postcodes in Victoria or widen the search to Postcodes in Australia.