Home Postcode finder VIC Hernes Oak Hernes Oak postcode VIC Hernes Oak is a locality in Victoria covered by postcode 3825. Postcode 3825 State or territory Victoria (VIC) Region Vic Country Add a free Hernes Oak business listing Be the first listing in Hernes Oak Common questionsWhat is the postcode for Hernes Oak?Hernes Oak, VIC has the postcode 3825.What state is Hernes Oak in?Hernes Oak is in Victoria (VIC).Does postcode 3825 cover more than one suburb?Yes. Postcode 3825 covers 30 localities, so the postcode alone does not identify Hernes Oak. Browse other postcodes in Victoria, or widen the search to every Australian postcode.