Home Postcode finder VIC Big Hill Big Hill postcode VIC Big Hill is a locality in Victoria covered by postcode 3231. Postcode 3231 State or territory Victoria (VIC) Region Vic Far Country Add a free Big Hill business listing More business listings in Big Hill Businesses in Big HillBig Hill Primary School5644 Calder Hwy · 03 54477022 Common questionsWhat is the postcode for Big Hill?Big Hill, VIC has the postcode 3231.What state is Big Hill in?Big Hill is in Victoria (VIC).Does postcode 3231 cover more than one suburb?Yes. Postcode 3231 covers 5 localities, so the postcode alone does not identify Big Hill. Browse other postcodes in Victoria, or widen the search to every Australian postcode.