Largest Australian State by Land Area: Western Australia

Western Australia (WA) covers 2,529,875 km² (977,162 sq mi)—nearly one-third of the continent and the largest subnational entity globally (ahead of Kazakhstan’s Almaty Region).

Comparison:
• WA ≈ 4× Texas
• WA ≈ 10× UK
• Population only ~2.8M (2023), concentrated in Perth metro (2.1M).

Next largest: Queensland (1.73M km²), Northern Territory (1.35M km²).