The map above shows Delaware and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Delaware vs Ontario Geography
Land area: Delaware has a land area of 1,949 square miles (5,047 km²), while Ontario has 354,342 square miles (917,741 km²). Ontario's land area is 181.8 times larger than Delaware's.
Total area: Delaware: 2,489 square miles (6,446 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water. Ontario's total area is 167.0 times larger than Delaware's.
Length: Delaware is 98 miles (158 km) long from north to south; Ontario is 1,085 miles (1,747 km). Ontario's north-south length is 11.1 times longer than Delaware's.
Width: Delaware spans 96 miles (155 km) east to west; Ontario spans 1,013 miles (1,630 km). Ontario's east-west width is 10.6 times wider than Delaware's.
Highest point: Delaware's highest point is Ebright Azimuth at 450 feet (137 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m). Ishpatina Ridge is 1,824 feet higher than Ebright Azimuth.
Lowest point: Delaware's lowest point is Atlantic Ocean at 0 feet; Ontario's is Hudson Bay at 0 feet. Both lowest points are at or near sea level.
Delaware vs Ontario Population and History
Population: Delaware has a population of 1,051,917 (2024), while Ontario has 16,136,480 (2026). Ontario's population is 15.3 times larger than Delaware's.
Population density: Delaware: 539.9 people per square mile vs Ontario: 45.5. Delaware's population density is 11.9 times higher than Ontario's.
Biggest city: Delaware's biggest city is Wilmington with 73,176 people; Ontario's is Toronto with 2,794,356. Toronto's population is 38.2 times larger than Wilmington's.
Largest metro area: Delaware's largest metropolitan area is Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area (6,330,422 people) vs Ontario's Toronto CMA (6,202,225). Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area and Toronto CMA have about the same population.
History: Delaware: Admitted to the Union on December 7, 1787, as the 1st state. Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces. In its current form, Delaware is the older of the two by 80 years.
Delaware vs Ontario Economy
GDP: Delaware's GDP is $111.0 billion (2024) vs Ontario's $873.9 billion. Ontario's economic output is 7.9 times (687%) larger than Delaware's.
GDP per capita: Delaware: $105,495 per person vs Ontario: $54,132. Delaware's GDP per capita is 1.9 times (95%) higher than Ontario's.
Official Websites
Delaware official website · Ontario official website
More Size Comparisons
All Delaware size comparisons · All Ontario 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.