Home Postcode finder ACT Harman Harman postcode ACT Harman is a locality in Australian Capital Territory covered by postcode 2600. Postcode 2600 State or territory Australian Capital Territory (ACT) Region Canberra Add a free Harman business listing Be the first listing in Harman Common questionsWhat is the postcode for Harman?Harman, ACT has the postcode 2600.What state is Harman in?Harman is in Australian Capital Territory (ACT).Does postcode 2600 cover more than one suburb?Yes. Postcode 2600 covers 13 localities, so the postcode alone does not identify Harman. Browse other postcodes in Australian Capital Territory, or widen the search to every Australian postcode.