Home Postcode finder NSW Milroy Milroy postcode NSW Milroy is a locality in New South Wales covered by postcode 2380. Postcode 2380 State or territory New South Wales (NSW) Region NSW North Coast Add a free Milroy business listing Be the first listing in Milroy Common questionsWhat is the postcode for Milroy?Milroy, NSW has the postcode 2380.What state is Milroy in?Milroy is in New South Wales (NSW).Does postcode 2380 cover more than one suburb?Yes. Postcode 2380 covers 9 localities, so the postcode alone does not identify Milroy. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.