wallumbilla postcode qldga Home ›› Postcode Finder ›› QLDGA ›› Wallumbilla Wallumbilla local listingsThe suburb of Wallumbilla is located in QLD and has a postcode of 4428. Free wallumbilla business listing! 1Wallumbilla State School22 High St 07 46298888 View more business listings in wallumbilla Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.