Home Postcode finder QLD St George St George postcode QLD St George is a locality in Queensland covered by postcode 4487. Postcode 4487 State or territory Queensland (QLD) Region Toowoomba Region Add a free St George business listing More business listings in St George Businesses in St GeorgeSt George State High School2 Victoria St · 07 46208222St George State School20-40 Grey St · 07 46208333St Patrick's Primary SchoolBalonne St · 07 46253058 Common questionsWhat is the postcode for St George?St George, QLD has the postcode 4487.What state is St George in?St George is in Queensland (QLD).Does postcode 4487 cover more than one suburb?Yes. Postcode 4487 covers 2 localities, so the postcode alone does not identify St George. Browse other postcodes in Queensland, or widen the search to every Australian postcode.