About the boundaries
Official Australian Bureau of Statistics boundaries (ASGS Edition 3, 2025 release, CC BY 4.0), simplified for the map but matched at full detail for suburbs and postcodes. Federal seats use the boundaries from the 2025 election (NSW has 46 seats, Victoria 38, the ACT 3). State and territory seats use the boundaries in force now: NSW from the 2023 election, Victoria from the 2022 election and the ACT from the 2024 election. Suburbs and postcodes that straddle a boundary list every seat holding at least 15% of them.