dalby postcode qldgu Home ›› Postcode Finder ›› QLDGU ›› Dalby Dalby local listingsThe suburb of Dalby is located in QLD and has a postcode of 4405. Free dalby business listing! 1Dalby Christian School2a Mary St 07 467242222Dalby State High School26 Nicholson St 07 466909003Our Lady of the Southern Cross College2 Nicholson St 07 46724111 View more business listings in dalby Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.