Home Postcode finder QLD Underwood Underwood postcode QLD Underwood is a locality in Queensland covered by postcode 4119. Postcode 4119 State or territory Queensland (QLD) Region South Subs Add a free Underwood business listing More business listings in Underwood Businesses in UnderwoodAllfix Fasteners77 Compton Road · 07 3290 1466B&C Plastics43 Parramatta Road · (07) 3208 0555Bambino HomeUnderwood · (07) 3808 6003 Common questionsWhat is the postcode for Underwood?Underwood, QLD has the postcode 4119.What state is Underwood in?Underwood is in Queensland (QLD).Does postcode 4119 cover more than one suburb?No. Postcode 4119 covers Underwood only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in Queensland, or widen the search to every Australian postcode.