Home Postcodes by state SA 5025 Postcode 5025 5025 is the postcode for 2 localities in SA: Flinders Park and Kidman Park. Localities with postcode 5025Flinders ParkSAKidman ParkSA Postcode 5025 State or territory South Australia (SA) Localities 2 Council area Charles Sturt Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5024 · Postcode 5031