Home Postcodes by state SA Wilmington Wilmington postcode SA Wilmington is a locality in South Australia covered by postcode 5485. Postcode 5485 State or territory South Australia (SA) Region SA Outer Suburbs Council area Mount Remarkable Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Wilmington business listing More business listings in Wilmington Suburbs near WilmingtonStraight-line distance between locality centres.WinninowieSA 5710 · 15.1 kmNectar BrookSA 5495 · 15.3 kmWoolundungaSA 5710 · 18.4 kmMirandaSA 5700 · 20.4 kmMelroseSA 5483 · 21.1 kmAmytonSA 5431 · 21.7 kmWillowieSA 5431 · 21.7 kmMambray CreekSA 5495 · 22.8 kmBruceSA 5433 · 23.1 kmSaltiaSA 5433 · 25.0 km Businesses in WilmingtonWilmington Primary School14 Fifth St · 08 86675112 Common questionsWhat is the postcode for Wilmington?Wilmington, SA has the postcode 5485.What state is Wilmington in?Wilmington is in South Australia (SA).What council is Wilmington in?Wilmington is in the Mount Remarkable local government area.Does postcode 5485 cover more than one suburb?No. Postcode 5485 covers Wilmington only, which is unusual - most Australian postcodes cover several localities.What suburbs are near Wilmington?The closest are Winninowie (15.1 km), Nectar Brook (15.3 km), Woolundunga (18.4 km), Miranda (20.4 km) and Melrose (21.1 km). Distances are straight lines between locality centres. Browse other postcodes in South Australia, or widen the search to every Australian postcode.