Home Postcode finder ACT Mckellar Mckellar postcode ACT Mckellar is a locality in Australian Capital Territory covered by postcode 2617. Postcode 2617 State or territory Australian Capital Territory (ACT) Region Canberra Add a free Mckellar business listing Be the first listing in Mckellar Common questionsWhat is the postcode for Mckellar?Mckellar, ACT has the postcode 2617.What state is Mckellar in?Mckellar is in Australian Capital Territory (ACT).Does postcode 2617 cover more than one suburb?Yes. Postcode 2617 covers 8 localities, so the postcode alone does not identify Mckellar. Browse other postcodes in Australian Capital Territory, or widen the search to every Australian postcode.