wowan postcode qldga Home ›› Postcode Finder ›› QLDGA ›› Wowan Wowan local listingsThe suburb of Wowan is located in QLD and has a postcode of 4702. Free wowan business listing! 1Wowan State School27 Don St 07 49371133 View more business listings in wowan Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.