Home Postcode finder VIC Redcastle Redcastle postcode VIC Redcastle is a locality in Victoria covered by postcode 3523. Postcode 3523 State or territory Victoria (VIC) Region Vic Far Country Add a free Redcastle business listing Be the first listing in Redcastle Common questionsWhat is the postcode for Redcastle?Redcastle, VIC has the postcode 3523.What state is Redcastle in?Redcastle is in Victoria (VIC).Does postcode 3523 cover more than one suburb?Yes. Postcode 3523 covers 10 localities, so the postcode alone does not identify Redcastle. Browse other postcodes in Victoria, or widen the search to every Australian postcode.