Home Postcode finder WA Joondalup Joondalup postcode WA Joondalup is a locality in Western Australia covered by postcode 6027. Postcode 6027 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Add a free Joondalup business listing More business listings in Joondalup Businesses in JoondalupAbsolute Cosmetic Medicine Joondalup420 Joondalup · (08) 9488 3330Ace Scooters Joondalup · (08) 9300 1719 Ace Scooters10 Mercer Lane · (08) 9300 1719 Common questionsWhat is the postcode for Joondalup?Joondalup, WA has the postcode 6027.What state is Joondalup in?Joondalup is in Western Australia (WA).Does postcode 6027 cover more than one suburb?Yes. Postcode 6027 covers 7 localities, so the postcode alone does not identify Joondalup. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.