The map above shows Tasmania and Western Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Tasmania vs Western Australia Geography
Land area: Tasmania has a land area of 26,410 square miles (68,401 km²), while Western Australia has 975,685 square miles (2,527,013 km²). Western Australia's land area is 36.9 times larger than Tasmania's.
Total area: Tasmania: 26,410 square miles (68,401 km²) vs Western Australia: 975,685 square miles (2,527,013 km²), including inland and coastal water. Western Australia's total area is 36.9 times larger than Tasmania's.
Length: Tasmania is 318 miles (511 km) long from north to south; Western Australia is 1,590 miles (2,558 km). Western Australia's north-south length is 5.0 times (400%) longer than Tasmania's.
Width: Tasmania spans 248 miles (399 km) east to west; Western Australia spans 1,286 miles (2,069 km). Western Australia's east-west width is 5.2 times (419%) wider than Tasmania's.
Highest point: Tasmania's highest point is Mount Ossa at 5,305 feet (1,617 m); Western Australia's is Mount Meharry at 4,098 feet (1,249 m). Mount Ossa is 1,207 feet higher than Mount Meharry.
Lowest point: Tasmania's lowest point is Southern Ocean at 0 feet; Western Australia's is Indian Ocean at 0 feet. Both lowest points are at or near sea level.
Tasmania vs Western Australia Population and History
Population: Tasmania has a population of 576,659 (2025), while Western Australia has 3,061,672 (2025). Western Australia's population is 5.3 times (431%) larger than Tasmania's.
Population density: Tasmania: 21.8 people per square mile vs Western Australia: 3.1. Tasmania's population density is 7.0 times (603%) higher than Western Australia's.
Largest metro area: Tasmania's largest metropolitan area is Greater Hobart (255,250 people) vs Western Australia's Greater Perth (2,452,765). Greater Perth's population is 9.6 times (861%) larger than Greater Hobart's.
History: Tasmania: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1825. Western Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1829.
Tasmania vs Western Australia Economy
GDP: Tasmania's GDP is $28.3 billion (2025) vs Western Australia's $304.6 billion. Western Australia's economic output is 10.8 times larger than Tasmania's.
GDP per capita: Tasmania: $49,076 per person vs Western Australia: $99,488. Western Australia's GDP per capita is 2.0 times (103%) higher than Tasmania's.
Official Websites
Tasmania official website · Western Australia official website
More Size Comparisons
All Tasmania size comparisons · All Western Australia size comparisons
Area, elevation and boundary figures come from official national statistics and US Census Bureau and Natural Earth boundary data; US state population, economic, county and tax figures come from the US Census Bureau, the Bureau of Economic Analysis and the Tax Foundation. Figures are rounded and for general reference.