Home Postcodes by state VIC 3191 Postcode 3191 3191 is the postcode for Sandringham, VIC. Localities with postcode 3191SandringhamVIC Postcode 3191 State or territory Victoria (VIC) Localities 1 Council area Bayside Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 3190 · Postcode 3192