Home Postcodes by state VIC 3321 Postcode 3321 3321 is the postcode for 3 localities in VIC: Hesse, Inverleigh and Wingeel. Localities with postcode 3321HesseVICInverleighVICWingeelVIC Postcode 3321 State or territory Victoria (VIC) Localities 3 Council area Golden Plains; Mainly Colac Otway, partly Golden Plains Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3319 · Postcode 3322