The map above shows Rhode Island and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Rhode Island vs Ontario Geography
Land area: Rhode Island has a land area of 1,034 square miles (2,678 km²), while Ontario has 354,342 square miles (917,741 km²). Ontario's land area is 342.7 times larger than Rhode Island's.
Total area: Rhode Island: 1,545 square miles (4,002 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water. Ontario's total area is 269.0 times larger than Rhode Island's.
Length: Rhode Island is 61 miles (98 km) long from north to south; Ontario is 1,085 miles (1,747 km). Ontario's north-south length is 17.8 times longer than Rhode Island's.
Width: Rhode Island spans 42 miles (67 km) east to west; Ontario spans 1,013 miles (1,630 km). Ontario's east-west width is 24.1 times wider than Rhode Island's.
Highest point: Rhode Island's highest point is Jerimoth Hill at 811 feet (247 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m). Ishpatina Ridge is 1,463 feet higher than Jerimoth Hill.
Lowest point: Rhode Island'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.
Rhode Island vs Ontario Population and History
Population: Rhode Island has a population of 1,112,308 (2024), while Ontario has 16,136,480 (2026). Ontario's population is 14.5 times larger than Rhode Island's.
Population density: Rhode Island: 1,075.8 people per square mile vs Ontario: 45.5. Rhode Island's population density is 23.6 times higher than Ontario's.
Biggest city: Rhode Island's biggest city is Providence with 194,706 people; Ontario's is Toronto with 2,794,356. Toronto's population is 14.4 times larger than Providence's.
Largest metro area: Rhode Island's largest metropolitan area is Providence-Warwick, RI-MA metro area (1,700,901 people) vs Ontario's Toronto CMA (6,202,225). Toronto CMA's population is 3.6 times (265%) larger than Providence-Warwick, RI-MA metro area's.
History: Rhode Island: Admitted to the Union on May 29, 1790, as the 13th state. Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces. In its current form, Rhode Island is the older of the two by 77 years.
Rhode Island vs Ontario Economy
GDP: Rhode Island's GDP is $80.4 billion (2024) vs Ontario's $873.9 billion. Ontario's economic output is 10.9 times larger than Rhode Island's.
GDP per capita: Rhode Island: $72,265 per person vs Ontario: $54,132. Rhode Island's GDP per capita is 1.3 times (33%) higher than Ontario's.
Official Websites
Rhode Island official website · Ontario official website
More Size Comparisons
All Rhode Island 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.