Home Postcode finder SA Houghton Houghton postcode SA Houghton is a locality in South Australia covered by postcode 5131. Postcode 5131 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Houghton business listing More business listings in Houghton Businesses in HoughtonGR Phones2/608 Lower North East Rd, Houghton SA, Australia · (08) 8342 0008Horizonline Roofing PO Box 137 · 08 8380 5796Houghton Primary SchoolLower North East Rd · 08 83805300 Common questionsWhat is the postcode for Houghton?Houghton, SA has the postcode 5131.What state is Houghton in?Houghton is in South Australia (SA).Does postcode 5131 cover more than one suburb?Yes. Postcode 5131 covers 3 localities, so the postcode alone does not identify Houghton. Browse other postcodes in South Australia, or widen the search to every Australian postcode.