Home Postcodes by state SA Hay Flat Hay Flat postcode SA Hay Flat is a locality in South Australia covered by postcode 5204. Postcode 5204 State or territory South Australia (SA) Region Adelaide Council area Yankalilla Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Hay Flat business listing Be the first listing in Hay Flat Suburbs near Hay FlatStraight-line distance between locality centres.Torrens ValeSA 5203 · 3.9 kmBald HillsSA 5203 · 5.1 kmYankalillaSA 5203 · 5.3 kmWirrina CoveSA 5204 · 6.2 kmNormanvilleSA 5204 · 6.5 kmParawaSA 5203 · 6.8 kmCarrickalingaSA 5204 · 8.6 kmWattle FlatSA 5203 · 10.4 kmWillow CreekSA 5211 · 10.6 kmSecond ValleySA 5204 · 10.6 kmInman ValleySA 5211 · 10.9 kmTunkalillaSA 5203 · 12.2 kmDistances to every suburb around Hay Flat Also in postcode 5204Cape JervisSA 5204CarrickalingaSA 5204Deep CreekSA 5204DelamereSA 5204NormanvilleSA 5204Rapid BaySA 5204Second ValleySA 5204SilvertonSA 5204Wirrina CoveSA 5204 Common questionsWhat is the postcode for Hay Flat?Hay Flat, SA has the postcode 5204.What state is Hay Flat in?Hay Flat is in South Australia (SA).What council is Hay Flat in?Hay Flat is in the Yankalilla local government area.Does postcode 5204 cover more than one suburb?Yes. Postcode 5204 covers 10 localities, so the postcode alone does not identify Hay Flat.What suburbs are near Hay Flat?The closest are Torrens Vale (3.9 km), Bald Hills (5.1 km), Yankalilla (5.3 km), Wirrina Cove (6.2 km) and Normanville (6.5 km). Distances are straight lines between locality centres. Browse other postcodes in South Australia, or widen the search to every Australian postcode.