Home Postcodes by state VIC 3243 Postcode 3243 3243 is the postcode for 4 localities in VIC: Barwon Downs, Murroon, Warncoort and Whoorel. Localities with postcode 3243Barwon DownsVICMurroonVICWarncoortVICWhoorelVIC Postcode 3243 State or territory Victoria (VIC) Localities 4 Council area Colac Otway Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3242 · Postcode 3249