Home Postcode finder VIC Nyah Nyah postcode VIC Nyah is a locality in Victoria covered by postcode 3594. Postcode 3594 State or territory Victoria (VIC) Region Vic Far Country Add a free Nyah business listing Be the first listing in Nyah Common questionsWhat is the postcode for Nyah?Nyah, VIC has the postcode 3594.What state is Nyah in?Nyah is in Victoria (VIC).Does postcode 3594 cover more than one suburb?No. Postcode 3594 covers Nyah only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in Victoria, or widen the search to every Australian postcode.