Home Postcode finder SA Nectar Brook Nectar Brook postcode SA Nectar Brook is a locality in South Australia covered by postcode 5495. Postcode 5495 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Nectar Brook business listing Be the first listing in Nectar Brook Common questionsWhat is the postcode for Nectar Brook?Nectar Brook, SA has the postcode 5495.What state is Nectar Brook in?Nectar Brook is in South Australia (SA).Does postcode 5495 cover more than one suburb?Yes. Postcode 5495 covers 6 localities, so the postcode alone does not identify Nectar Brook. Browse other postcodes in South Australia, or widen the search to every Australian postcode.