Home Postcode finder QLD Sinnamon Park Sinnamon Park postcode QLD Sinnamon Park is a locality in Queensland covered by postcode 4073. Postcode 4073 State or territory Queensland (QLD) Region Heathwood Add a free Sinnamon Park business listing More business listings in Sinnamon Park Businesses in Sinnamon ParkMitchell Plumbing Gas20 Donnelly Ct, Sinnamon Park QLD 4073, Australia · +61 1300 675 862Spectrum Estate Agents75 Sinnamon Rd, Sinnamon Park QLD 4073, Australia · 07 3707 3143 Common questionsWhat is the postcode for Sinnamon Park?Sinnamon Park, QLD has the postcode 4073.What state is Sinnamon Park in?Sinnamon Park is in Queensland (QLD).Does postcode 4073 cover more than one suburb?Yes. Postcode 4073 covers 2 localities, so the postcode alone does not identify Sinnamon Park. Browse other postcodes in Queensland, or widen the search to every Australian postcode.