Home Postcode finder SA Avenue Range Avenue Range postcode SA Avenue Range is a locality in South Australia covered by postcode 5273. Postcode 5273 State or territory South Australia (SA) Region SA Outer Suburbs Add a free Avenue Range business listing Be the first listing in Avenue Range Common questionsWhat is the postcode for Avenue Range?Avenue Range, SA has the postcode 5273.What state is Avenue Range in?Avenue Range is in South Australia (SA).Does postcode 5273 cover more than one suburb?No. Postcode 5273 covers Avenue Range only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in South Australia, or widen the search to every Australian postcode.