Home Postcode finder QLD Port Douglas Port Douglas postcode QLD Port Douglas is a locality in Queensland covered by postcode 4877. Postcode 4877 State or territory Queensland (QLD) Region North QLD Add a free Port Douglas business listing More business listings in Port Douglas Businesses in Port DouglasABC Scuba Diving Port Douglas24 Wharf Street · 07 4099 6243Balboa1 Garrick Street · (07) 4099 5222Belle Property5 Owen St · (07) 4098 5229 Common questionsWhat is the postcode for Port Douglas?Port Douglas, QLD has the postcode 4877.What state is Port Douglas in?Port Douglas is in Queensland (QLD).Does postcode 4877 cover more than one suburb?Yes. Postcode 4877 covers 6 localities, so the postcode alone does not identify Port Douglas. Browse other postcodes in Queensland, or widen the search to every Australian postcode.