caloundra postcode qldru Home ›› Postcode Finder ›› QLDRU ›› Caloundra Caloundra local listingsThe suburb of Caloundra is located in QLD and has a postcode of 4551. Free caloundra business listing! 1Caloundra Christian College7 Gregson Place 07 543667772Caloundra State High School88 Queen St 07 543684443Caloundra State School56A Queen St 07 54394200 View more business listings in caloundra Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.