Home Postcode finder QLD Armstrong Beach Armstrong Beach postcode QLD Armstrong Beach is a locality in Queensland covered by postcode 4737. Postcode 4737 State or territory Queensland (QLD) Region Central QLD Add a free Armstrong Beach business listing Be the first listing in Armstrong Beach Common questionsWhat is the postcode for Armstrong Beach?Armstrong Beach, QLD has the postcode 4737.What state is Armstrong Beach in?Armstrong Beach is in Queensland (QLD).Does postcode 4737 cover more than one suburb?Yes. Postcode 4737 covers 8 localities, so the postcode alone does not identify Armstrong Beach. Browse other postcodes in Queensland, or widen the search to every Australian postcode.