The map above shows Puerto Rico and Western Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Puerto Rico vs Western Australia Geography
Land area: Puerto Rico has a land area of 3,424 square miles (8,868 km²), while Western Australia has 975,685 square miles (2,527,013 km²). Western Australia's land area is 285.0 times larger than Puerto Rico's.
Total area: Puerto Rico: 3,515 square miles (9,104 km²) vs Western Australia: 975,685 square miles (2,527,013 km²), including inland and coastal water. Western Australia's total area is 277.6 times larger than Puerto Rico's.
Length: Puerto Rico is 67 miles (107 km) long from north to south; Western Australia is 1,590 miles (2,558 km). Western Australia's north-south length is 23.7 times longer than Puerto Rico's.
Width: Puerto Rico spans 174 miles (279 km) east to west; Western Australia spans 1,286 miles (2,069 km). Western Australia's east-west width is 7.4 times (639%) wider than Puerto Rico's.
Highest point: Puerto Rico's highest point is Cerro de Punta at 4,390 feet (1,338 m); Western Australia's is Mount Meharry at 4,098 feet (1,249 m). Cerro de Punta is 292 feet higher than Mount Meharry.
Lowest point: Puerto Rico's lowest point is Atlantic Ocean at 0 feet; Western Australia's is Indian Ocean at 0 feet. Both lowest points are at or near sea level.
Puerto Rico vs Western Australia Population and History
Population: Puerto Rico has a population of 3,285,874 (2020), while Western Australia has 3,061,672 (2025). Puerto Rico's population is 1.1 times (7%) larger than Western Australia's.
Population density: Puerto Rico: 959.7 people per square mile vs Western Australia: 3.1. Puerto Rico's population density is 309.6 times higher than Western Australia's.
Largest metro area: Puerto Rico's largest metropolitan area is San Juan metro area (2,233,177 people) vs Western Australia's Greater Perth (2,452,765). Greater Perth's population is 1.1 times (10%) larger than San Juan metro area's.
History: Puerto Rico: A US territory since 1898; a commonwealth since 1952. Western Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1829. In its current form, Puerto Rico is the older of the two by 3 years.
Puerto Rico vs Western Australia Economy
GDP: Puerto Rico's GDP is $129.0 billion (2025) vs Western Australia's $304.6 billion. Western Australia's economic output is 2.4 times (136%) larger than Puerto Rico's.
GDP per capita: Puerto Rico: $40,650 per person vs Western Australia: $99,488. Western Australia's GDP per capita is 2.4 times (145%) higher than Puerto Rico's.
Official Websites
Puerto Rico official website · Western Australia official website
More Size Comparisons
All Puerto Rico 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.