coowonga postcode qldga Home ›› Postcode Finder ›› QLDGA ›› Coowonga Coowonga local listingsThe suburb of Coowonga is located in QLD and has a postcode of 4702. Free coowonga business listing! 1Coowonga State School269 Coowonga Rd 07 49344192 View more business listings in coowonga Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.