Home Postcode finder QLD Applethorpe Applethorpe postcode QLD Applethorpe is a locality in Queensland covered by postcode 4378. Postcode 4378 State or territory Queensland (QLD) Region Toowoomba Region Add a free Applethorpe business listing More business listings in Applethorpe Businesses in ApplethorpeApplethorpe State SchoolNew England Hwy · 07 46832203 Common questionsWhat is the postcode for Applethorpe?Applethorpe, QLD has the postcode 4378.What state is Applethorpe in?Applethorpe is in Queensland (QLD).Does postcode 4378 cover more than one suburb?No. Postcode 4378 covers Applethorpe only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in Queensland, or widen the search to every Australian postcode.