The map above shows District of Columbia and Northern Mariana Islands side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
District of Columbia vs Northern Mariana Islands Geography
Land area
- District of Columbia has a land area of 61 square miles (158 km²), while Northern Mariana Islands has 179 square miles (464 km²).
- Northern Mariana Islands' land area is 2.9 times (194%) larger than District of Columbia's.
Total area
- District of Columbia: 68 square miles (177 km²) vs Northern Mariana Islands: 179 square miles (464 km²), including inland and coastal water.
- Northern Mariana Islands' total area is 2.6 times (162%) larger than District of Columbia's.
Length
- District of Columbia is 13 miles (22 km) long from north to south; Northern Mariana Islands is 326 miles (524 km).
- Northern Mariana Islands' north-south length is 25.1 times longer than District of Columbia's.
Width
- District of Columbia spans 12 miles (19 km) east to west; Northern Mariana Islands spans 278 miles (448 km).
- Northern Mariana Islands' east-west width is 23.2 times wider than District of Columbia's.
Highest point
- District of Columbia's highest point is Fort Reno at 429 feet (131 m); Northern Mariana Islands's is Agrihan at 3,166 feet (965 m).
- Agrihan is 2,737 feet higher than Fort Reno.
Lowest point
- District of Columbia's lowest point is Potomac River at 0 feet; Northern Mariana Islands's is Pacific Ocean at 0 feet.
- Both lowest points are at or near sea level.
District of Columbia vs Northern Mariana Islands Population and History
Population
- District of Columbia has a population of 702,250 (2024), while Northern Mariana Islands has 47,329 (2020).
- District of Columbia's population is 14.8 times larger than Northern Mariana Islands'.
Population density
- District of Columbia: 11,493.5 people per square mile vs Northern Mariana Islands: 264.4.
- District of Columbia's population density is 43.5 times higher than Northern Mariana Islands'.
History
- District of Columbia: The federal district, established by the Residence Act on July 16, 1790; not a state.
- Northern Mariana Islands: A US commonwealth since 1978.
- In its current form, District of Columbia is the older of the two by 188 years.
Official Websites
District of Columbia official website · Northern Mariana Islands official website
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More Size Comparisons
All District of Columbia 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.