sumner postcode qld Home ›› Postcode Finder ›› QLD ›› Sumner Sumner local listingsThe suburb of Sumner is located in QLD and has a postcode of 4074. Free sumner business listing! 1Amazing Clean Blinds Toowong9-45 Jijaws Street (07) 3279 20732Chelmstone10 Neon Street (07) 3279 31773Killoran Dental50 (07) 3376 1065 View more business listings in sumner Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.