The map above shows Northern Mariana Islands and Western Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Northern Mariana Islands vs Western Australia Geography
Land area
- Northern Mariana Islands has a land area of 179 square miles (464 km²), while Western Australia has 975,685 square miles (2,527,013 km²).
- Western Australia's land area is 5,446.1 times larger than Northern Mariana Islands'.
Total area
- Northern Mariana Islands: 179 square miles (464 km²) vs Western Australia: 975,685 square miles (2,527,013 km²), including inland and coastal water.
- Western Australia's total area is 5,446.1 times larger than Northern Mariana Islands'.
Length
- Northern Mariana Islands is 326 miles (524 km) long from north to south; Western Australia is 1,590 miles (2,558 km).
- Western Australia's north-south length is 4.9 times (388%) longer than Northern Mariana Islands'.
Width
- Northern Mariana Islands spans 278 miles (448 km) east to west; Western Australia spans 1,286 miles (2,069 km).
- Western Australia's east-west width is 4.6 times (363%) wider than Northern Mariana Islands'.
Highest point
- Northern Mariana Islands's highest point is Agrihan at 3,166 feet (965 m); Western Australia's is Mount Meharry at 4,098 feet (1,249 m).
- Mount Meharry is 932 feet higher than Agrihan.
Lowest point
- Northern Mariana Islands's lowest point is Pacific Ocean at 0 feet; Western Australia's is Indian Ocean at 0 feet.
- Both lowest points are at or near sea level.
Northern Mariana Islands vs Western Australia Population and History
Population
- Northern Mariana Islands has a population of 47,329 (2020), while Western Australia has 3,061,672 (2025).
- Western Australia's population is 64.7 times larger than Northern Mariana Islands'.
Population density
- Northern Mariana Islands: 264.4 people per square mile vs Western Australia: 3.1.
- Northern Mariana Islands' population density is 85.3 times higher than Western Australia's.
History
- Northern Mariana Islands: A US commonwealth since 1978.
- Western Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1829.
- In its current form, Western Australia is the older of the two by 77 years.
Official Websites
Northern Mariana Islands official website · Western Australia official website
Download the Northern Mariana Islands vs Western Australia Size Comparison Map for free
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More Size Comparisons
All Northern Mariana Islands 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.