The map above shows Illinois and Northern Mariana Islands side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Illinois vs Northern Mariana Islands Geography
Land area
- Illinois has a land area of 55,513 square miles (143,778 km²), while Northern Mariana Islands has 179 square miles (464 km²).
- Illinois' land area is 309.9 times larger than Northern Mariana Islands'.
Total area
- Illinois: 57,913 square miles (149,995 km²) vs Northern Mariana Islands: 179 square miles (464 km²), including inland and coastal water.
- Illinois' total area is 323.3 times larger than Northern Mariana Islands'.
Length
- Illinois is 390 miles (628 km) long from north to south; Northern Mariana Islands is 326 miles (524 km).
- Illinois' north-south length is 1.2 times (20%) longer than Northern Mariana Islands'.
Width
- Illinois spans 283 miles (456 km) east to west; Northern Mariana Islands spans 278 miles (448 km).
- Illinois and Northern Mariana Islands have about the same east-west width.
Highest point
- Illinois's highest point is Charles Mound at 1,232 feet (376 m); Northern Mariana Islands's is Agrihan at 3,166 feet (965 m).
- Agrihan is 1,934 feet higher than Charles Mound.
Lowest point
- Illinois's lowest point is Mississippi River at 292 feet; Northern Mariana Islands's is Pacific Ocean at 0 feet.
- Northern Mariana Islands's lowest point is 292 feet lower.
Illinois vs Northern Mariana Islands Population and History
Population
- Illinois has a population of 12,710,158 (2024), while Northern Mariana Islands has 47,329 (2020).
- Illinois' population is 268.5 times larger than Northern Mariana Islands'.
Population density
- Illinois: 229.0 people per square mile vs Northern Mariana Islands: 264.4.
- Northern Mariana Islands' population density is 1.2 times (15%) higher than Illinois'.
History
- Illinois: Admitted to the Union on December 3, 1818, as the 21st state.
- Northern Mariana Islands: A US commonwealth since 1978.
- In its current form, Illinois is the older of the two by 160 years.
Official Websites
Illinois official website · Northern Mariana Islands official website
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More Size Comparisons
All Illinois size comparisons · All Northern Mariana Islands 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.