Home Postcodes by state VIC 3782 Postcode 3782 3782 is the postcode for 4 localities in VIC: Avonsleigh, Clematis, Emerald and Macclesfield. Localities with postcode 3782AvonsleighVICClematisVICEmeraldVICMacclesfieldVIC Postcode 3782 State or territory Victoria (VIC) Localities 4 Council area Cardinia; Yarra Ranges Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3781 · Postcode 3783