Home Postcodes by state NSW 2025 Postcode 2025 2025 is the postcode for Woollahra, NSW. Localities with postcode 2025WoollahraNSW Postcode 2025 State or territory New South Wales (NSW) Localities 1 Council area Woollahra Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 2024 · Postcode 2026