The map above shows Northern Mariana Islands and New South Wales side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Northern Mariana Islands vs New South Wales Geography
Land area: Northern Mariana Islands has a land area of 179 square miles (464 km²), while New South Wales has 309,130 square miles (800,642 km²). New South Wales' land area is 1,725.5 times larger than Northern Mariana Islands'.
Total area: Northern Mariana Islands: 179 square miles (464 km²) vs New South Wales: 309,130 square miles (800,642 km²), including inland and coastal water. New South Wales' total area is 1,725.5 times larger than Northern Mariana Islands'.
Length: Northern Mariana Islands is 326 miles (524 km) long from north to south; New South Wales is 678 miles (1,092 km). New South Wales' north-south length is 2.1 times (108%) longer than Northern Mariana Islands'.
Width: Northern Mariana Islands spans 278 miles (448 km) east to west; New South Wales spans 831 miles (1,338 km). New South Wales' east-west width is 3.0 times (199%) wider than Northern Mariana Islands'.
Highest point: Northern Mariana Islands's highest point is Agrihan at 3,166 feet (965 m); New South Wales's is Mount Kosciuszko at 7,310 feet (2,228 m). Mount Kosciuszko is 4,144 feet higher than Agrihan.
Lowest point: Northern Mariana Islands's lowest point is Pacific Ocean at 0 feet; New South Wales's is Pacific Ocean at 0 feet. Both lowest points are at or near sea level.
Northern Mariana Islands vs New South Wales Population and History
Population: Northern Mariana Islands has a population of 47,329 (2020), while New South Wales has 8,624,534 (2025). New South Wales' population is 182.2 times larger than Northern Mariana Islands'.
Population density: Northern Mariana Islands: 264.4 people per square mile vs New South Wales: 27.9. Northern Mariana Islands' population density is 9.5 times (848%) higher than New South Wales'.
History: Northern Mariana Islands: A US commonwealth since 1978. New South Wales: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1788. In its current form, New South Wales is the older of the two by 77 years.
Official Websites
Northern Mariana Islands official website · New South Wales official website
More Size Comparisons
All Northern Mariana Islands size comparisons · All New South Wales 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.