Home Postcode finder ACT Wanniassa Wanniassa postcode ACT Wanniassa is a locality in Australian Capital Territory covered by postcode 2903. Postcode 2903 State or territory Australian Capital Territory (ACT) Region Canberra Add a free Wanniassa business listing More business listings in Wanniassa Businesses in WanniassaErindale College115 Mcbryde Cres · 02 62058111MacKillop Catholic College12 MacKinnon St · 02 62090100mycar Tyre & Auto CE WanniassaShell Coles Express Service Station Enter off Rylah Crescent, (near Langdon Avenue) · (02) 6129 8106 Common questionsWhat is the postcode for Wanniassa?Wanniassa, ACT has the postcode 2903.What state is Wanniassa in?Wanniassa is in Australian Capital Territory (ACT).Does postcode 2903 cover more than one suburb?Yes. Postcode 2903 covers 3 localities, so the postcode alone does not identify Wanniassa. Browse other postcodes in Australian Capital Territory, or widen the search to every Australian postcode.