Home Postcode finder SA Humbug Scrub Humbug Scrub postcode SA Humbug Scrub is a locality in South Australia covered by postcode 5114. Postcode 5114 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Humbug Scrub business listing Be the first listing in Humbug Scrub Common questionsWhat is the postcode for Humbug Scrub?Humbug Scrub, SA has the postcode 5114.What state is Humbug Scrub in?Humbug Scrub is in South Australia (SA).Does postcode 5114 cover more than one suburb?Yes. Postcode 5114 covers 12 localities, so the postcode alone does not identify Humbug Scrub. Browse other postcodes in South Australia, or widen the search to every Australian postcode.