The map above shows Wisconsin and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Wisconsin vs Ontario Geography
Land area
- Wisconsin has a land area of 54,168 square miles (140,294 km²), while Ontario has 354,342 square miles (917,741 km²).
- Ontario's land area is 6.5 times (554%) larger than Wisconsin's.
Total area
- Wisconsin: 65,497 square miles (169,636 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water.
- Ontario's total area is 6.3 times (535%) larger than Wisconsin's.
Length
- Wisconsin is 368 miles (593 km) long from north to south; Ontario is 1,085 miles (1,747 km).
- Ontario's north-south length is 2.9 times (195%) longer than Wisconsin's.
Width
- Wisconsin spans 323 miles (521 km) east to west; Ontario spans 1,013 miles (1,630 km).
- Ontario's east-west width is 3.1 times (214%) wider than Wisconsin's.
Highest point
- Wisconsin's highest point is Timms Hill at 1,946 feet (593 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m).
- Ishpatina Ridge is 328 feet higher than Timms Hill.
Lowest point
- Wisconsin's lowest point is Lake Michigan at 577 feet; Ontario's is Hudson Bay at 0 feet.
- Ontario's lowest point is 577 feet lower.
Wisconsin vs Ontario Population and History
Population
- Wisconsin has a population of 5,960,975 (2024), while Ontario has 16,136,480 (2026).
- Ontario's population is 2.7 times (171%) larger than Wisconsin's.
Population density
- Wisconsin: 110.0 people per square mile vs Ontario: 45.5.
- Wisconsin's population density is 2.4 times (142%) higher than Ontario's.
Biggest city
- Wisconsin's biggest city is Milwaukee with 563,531 people; Ontario's is Toronto with 2,794,356.
- Toronto's population is 5.0 times (396%) larger than Milwaukee's.
Largest metro area
- Wisconsin's largest metropolitan area is Minneapolis-St. Paul-Bloomington, MN-WI metro area (3,757,952 people) vs Ontario's Toronto CMA (6,202,225).
- Toronto CMA's population is 1.7 times (65%) larger than Minneapolis-St. Paul-Bloomington, MN-WI metro area's.
History
- Wisconsin: Admitted to the Union on May 29, 1848, as the 30th state.
- Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces.
- In its current form, Wisconsin is the older of the two by 19 years.
Wisconsin vs Ontario Economy
GDP
- Wisconsin's GDP is $453.3 billion (2024) vs Ontario's $873.9 billion.
- Ontario's economic output is 1.9 times (93%) larger than Wisconsin's.
GDP per capita
- Wisconsin: $76,044 per person vs Ontario: $54,132.
- Wisconsin's GDP per capita is 1.4 times (40%) higher than Ontario's.
Official Websites
Wisconsin official website · Ontario official website
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More Size Comparisons
All Wisconsin 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.