The map above shows Oregon and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Oregon vs Ontario Geography
Land area: Oregon has a land area of 95,997 square miles (248,630 km²), while Ontario has 354,342 square miles (917,741 km²). Ontario's land area is 3.7 times (269%) larger than Oregon's.
Total area: Oregon: 98,379 square miles (254,799 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water. Ontario's total area is 4.2 times (322%) larger than Oregon's.
Length: Oregon is 453 miles (730 km) long from north to south; Ontario is 1,085 miles (1,747 km). Ontario's north-south length is 2.4 times (140%) longer than Oregon's.
Width: Oregon spans 445 miles (715 km) east to west; Ontario spans 1,013 miles (1,630 km). Ontario's east-west width is 2.3 times (128%) wider than Oregon's.
Highest point: Oregon's highest point is Mount Hood at 11,232 feet (3,424 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m). Mount Hood is 8,958 feet higher than Ishpatina Ridge.
Lowest point: Oregon's lowest point is Pacific Ocean at 0 feet; Ontario's is Hudson Bay at 0 feet. Both lowest points are at or near sea level.
Oregon vs Ontario Population and History
Population: Oregon has a population of 4,272,371 (2024), while Ontario has 16,136,480 (2026). Ontario's population is 3.8 times (278%) larger than Oregon's.
Population density: Oregon: 44.5 people per square mile vs Ontario: 45.5. Oregon and Ontario have about the same population density.
Biggest city: Oregon's biggest city is Portland with 635,749 people; Ontario's is Toronto with 2,794,356. Toronto's population is 4.4 times (340%) larger than Portland's.
Largest metro area: Oregon's largest metropolitan area is Portland-Vancouver-Hillsboro, OR-WA metro area (2,537,904 people) vs Ontario's Toronto CMA (6,202,225). Toronto CMA's population is 2.4 times (144%) larger than Portland-Vancouver-Hillsboro, OR-WA metro area's.
History: Oregon: Admitted to the Union on February 14, 1859, as the 33rd state. Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces. In its current form, Oregon is the older of the two by 8 years.
Oregon vs Ontario Economy
GDP: Oregon's GDP is $330.2 billion (2024) vs Ontario's $873.9 billion. Ontario's economic output is 2.6 times (165%) larger than Oregon's.
GDP per capita: Oregon: $77,299 per person vs Ontario: $54,132. Oregon's GDP per capita is 1.4 times (43%) higher than Ontario's.
Official Websites
Oregon official website · Ontario official website
More Size Comparisons
All Oregon 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.