Home Postcode finder SA Keswick Keswick postcode SA Keswick is a locality in South Australia covered by postcode 5035. Postcode 5035 State or territory South Australia (SA) Region Adelaide Add a free Keswick business listing More business listings in Keswick Businesses in KeswickAll Terrain Tyres Adelaide44 Richmond Road, Keswick SA 5035, Australia · (08) 8371 5711Jetwave Industrial Equipment72-74 Richmond Road · 08-8371-3599Pedders Suspension19 Croydon Road · (08) 8297 9022 Common questionsWhat is the postcode for Keswick?Keswick, SA has the postcode 5035.What state is Keswick in?Keswick is in South Australia (SA).Does postcode 5035 cover more than one suburb?Yes. Postcode 5035 covers 6 localities, so the postcode alone does not identify Keswick. Browse other postcodes in South Australia, or widen the search to every Australian postcode.