Home Postcode finder WA Orange Grove Orange Grove postcode WA Orange Grove is a locality in Western Australia covered by postcode 6109. Postcode 6109 State or territory Western Australia (WA) Region North West Suburbs Add a free Orange Grove business listing More business listings in Orange Grove Businesses in Orange GroveOrange Grove Primary School32 Boyle Lane · 08 94593601 Common questionsWhat is the postcode for Orange Grove?Orange Grove, WA has the postcode 6109.What state is Orange Grove in?Orange Grove is in Western Australia (WA).Does postcode 6109 cover more than one suburb?Yes. Postcode 6109 covers 2 localities, so the postcode alone does not identify Orange Grove. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.