The map above shows Puerto Rico and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Puerto Rico vs Ontario Geography
Land area: Puerto Rico has a land area of 3,424 square miles (8,868 km²), while Ontario has 354,342 square miles (917,741 km²). Ontario's land area is 103.5 times larger than Puerto Rico's.
Total area: Puerto Rico: 3,515 square miles (9,104 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water. Ontario's total area is 118.2 times larger than Puerto Rico's.
Length: Puerto Rico is 67 miles (107 km) long from north to south; Ontario is 1,085 miles (1,747 km). Ontario's north-south length is 16.2 times longer than Puerto Rico's.
Width: Puerto Rico spans 174 miles (279 km) east to west; Ontario spans 1,013 miles (1,630 km). Ontario's east-west width is 5.8 times (482%) wider than Puerto Rico's.
Highest point: Puerto Rico's highest point is Cerro de Punta at 4,390 feet (1,338 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m). Cerro de Punta is 2,116 feet higher than Ishpatina Ridge.
Lowest point: Puerto Rico'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.
Puerto Rico vs Ontario Population and History
Population: Puerto Rico has a population of 3,285,874 (2020), while Ontario has 16,136,480 (2026). Ontario's population is 4.9 times (391%) larger than Puerto Rico's.
Population density: Puerto Rico: 959.7 people per square mile vs Ontario: 45.5. Puerto Rico's population density is 21.1 times higher than Ontario's.
Biggest city: Puerto Rico's biggest city is San Juan with 342,259 people; Ontario's is Toronto with 2,794,356. Toronto's population is 8.2 times (716%) larger than San Juan's.
Largest metro area: Puerto Rico's largest metropolitan area is San Juan metro area (2,233,177 people) vs Ontario's Toronto CMA (6,202,225). Toronto CMA's population is 2.8 times (178%) larger than San Juan metro area's.
History: Puerto Rico: A US territory since 1898; a commonwealth since 1952. Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces. In its current form, Ontario is the older of the two by 31 years.
Puerto Rico vs Ontario Economy
GDP: Puerto Rico's GDP is $129.0 billion (2025) vs Ontario's $873.9 billion. Ontario's economic output is 6.8 times (577%) larger than Puerto Rico's.
GDP per capita: Puerto Rico: $40,650 per person vs Ontario: $54,132. Ontario's GDP per capita is 1.3 times (33%) higher than Puerto Rico's.
Official Websites
Puerto Rico official website · Ontario official website
More Size Comparisons
All Puerto Rico 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.