Home Postcode finder VIC Willow Grove Willow Grove postcode VIC Willow Grove is a locality in Victoria covered by postcode 3825. Postcode 3825 State or territory Victoria (VIC) Region Vic Country Add a free Willow Grove business listing Be the first listing in Willow Grove Common questionsWhat is the postcode for Willow Grove?Willow Grove, VIC has the postcode 3825.What state is Willow Grove in?Willow Grove 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 Willow Grove. Browse other postcodes in Victoria, or widen the search to every Australian postcode.