Home Postcode finder ACT Kingston Kingston postcode ACT Kingston is a locality in Australian Capital Territory covered by postcode 2604. Postcode 2604 State or territory Australian Capital Territory (ACT) Region Canberra Add a free Kingston business listing More business listings in Kingston Businesses in KingstonBidsmith57 Eyre St, Kingston ACT 2604, Australia · 1300 243 294Mental Care ClinicTench St, Kingston ACT 2604, Australia · 0261003923one x47 Wentworth Avenue, Kingston ACT 2604, Australia · (02) 6234 3808 Common questionsWhat is the postcode for Kingston?Kingston, ACT has the postcode 2604.What state is Kingston in?Kingston is in Australian Capital Territory (ACT).Does postcode 2604 cover more than one suburb?Yes. Postcode 2604 covers 3 localities, so the postcode alone does not identify Kingston. Browse other postcodes in Australian Capital Territory, or widen the search to every Australian postcode.