Home Postcode finder SA Calomba Calomba postcode SA Calomba is a locality in South Australia covered by postcode 5501. Postcode 5501 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Calomba business listing Be the first listing in Calomba Common questionsWhat is the postcode for Calomba?Calomba, SA has the postcode 5501.What state is Calomba in?Calomba is in South Australia (SA).Does postcode 5501 cover more than one suburb?Yes. Postcode 5501 covers 14 localities, so the postcode alone does not identify Calomba. Browse other postcodes in South Australia, or widen the search to every Australian postcode.