The map above shows District of Columbia and Prince Edward Island side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
District of Columbia vs Prince Edward Island Geography
Land area: District of Columbia has a land area of 61 square miles (158 km²), while Prince Edward Island has 2,185 square miles (5,660 km²). Prince Edward Island's land area is 35.8 times larger than District of Columbia's.
Total area: District of Columbia: 68 square miles (177 km²) vs Prince Edward Island: 2,185 square miles (5,660 km²), including inland and coastal water. Prince Edward Island's total area is 32.0 times larger than District of Columbia's.
Length: District of Columbia is 13 miles (22 km) long from north to south; Prince Edward Island is 97 miles (157 km). Prince Edward Island's north-south length is 7.5 times (646%) longer than District of Columbia's.
Width: District of Columbia spans 12 miles (19 km) east to west; Prince Edward Island spans 117 miles (188 km). Prince Edward Island's east-west width is 9.8 times (875%) wider than District of Columbia's.
Highest point: District of Columbia's highest point is Fort Reno at 429 feet (131 m); Prince Edward Island's is Springton at 466 feet (142 m). Springton is 37 feet higher than Fort Reno.
Lowest point: District of Columbia's lowest point is Potomac River at 0 feet; Prince Edward Island's is Gulf of St. Lawrence at 0 feet. Both lowest points are at or near sea level.
District of Columbia vs Prince Edward Island Population and History
Population: District of Columbia has a population of 702,250 (2024), while Prince Edward Island has 182,001 (2026). District of Columbia's population is 3.9 times (286%) larger than Prince Edward Island's.
Population density: District of Columbia: 11,493.5 people per square mile vs Prince Edward Island: 83.3. District of Columbia's population density is 138.0 times higher than Prince Edward Island's.
Biggest city: District of Columbia's biggest city is Washington with 702,250 people; Prince Edward Island's is Charlottetown with 38,809. Washington's population is 18.1 times larger than Charlottetown's.
Largest metro area: District of Columbia's largest metropolitan area is Washington-Arlington-Alexandria, DC-VA-MD-WV metro area (6,436,489 people) vs Prince Edward Island's Charlottetown CMA (78,858). Washington-Arlington-Alexandria, DC-VA-MD-WV metro area's population is 81.6 times larger than Charlottetown CMA's.
History: District of Columbia: The federal district, established by the Residence Act on July 16, 1790; not a state. Prince Edward Island: Joined Confederation on July 1, 1873. In its current form, District of Columbia is the older of the two by 83 years.
District of Columbia vs Prince Edward Island Economy
GDP: District of Columbia's GDP is $184.3 billion (2024) vs Prince Edward Island's $8.0 billion. District of Columbia's economic output is 23.0 times larger than Prince Edward Island's.
GDP per capita: District of Columbia: $262,439 per person vs Prince Edward Island: $44,238. District of Columbia's GDP per capita is 5.9 times (493%) higher than Prince Edward Island's.
Official Websites
District of Columbia official website · Prince Edward Island official website
More Size Comparisons
All District of Columbia size comparisons · All Prince Edward Island 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.