Home Postcodes by state VIC 3797 Postcode 3797 3797 is the postcode for 5 localities in VIC: Gilderoy, Gladysdale, Powelltown, Three Bridges and Yarra Junction. Localities with postcode 3797GilderoyVICGladysdaleVICPowelltownVICThree BridgesVICYarra JunctionVIC Postcode 3797 State or territory Victoria (VIC) Localities 5 Council area Yarra Ranges Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3796 · Postcode 3799