harristown postcode qldga Home ›› Postcode Finder ›› QLDGA ›› Harristown Harristown local listingsThe suburb of Harristown is located in QLD and has a postcode of 4350. Free harristown business listing! 1Concordia College154 Stephen St 07 468827002Harristown State High School341-367 South St 07 463687003SWQ Training Pty Ltd46-48 Croft Crescent 07 4617 7800 View more business listings in harristown Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.