wallaroo postcode sa Home ›› Postcode Finder ›› SA ›› Wallaroo Wallaroo local listingsThe suburb of Wallaroo is located in SA and has a postcode of 5556. Free wallaroo business listing! 1Wallaroo Primary SchoolHughs St 08 882321902Kalori Catholic School6 Young St 08 88232549 View more business listings in wallaroo Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.