The map above shows Kansas and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Kansas vs Ontario Geography
Land area: Kansas has a land area of 81,759 square miles (211,754 km²), while Ontario has 354,342 square miles (917,741 km²). Ontario's land area is 4.3 times (333%) larger than Kansas'.
Total area: Kansas: 82,278 square miles (213,100 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water. Ontario's total area is 5.1 times (405%) larger than Kansas'.
Length: Kansas is 207 miles (334 km) long from north to south; Ontario is 1,085 miles (1,747 km). Ontario's north-south length is 5.2 times (424%) longer than Kansas'.
Width: Kansas spans 401 miles (645 km) east to west; Ontario spans 1,013 miles (1,630 km). Ontario's east-west width is 2.5 times (153%) wider than Kansas'.
Highest point: Kansas's highest point is Mount Sunflower at 4,040 feet (1,231 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m). Mount Sunflower is 1,766 feet higher than Ishpatina Ridge.
Lowest point: Kansas's lowest point is Verdigris River at 679 feet; Ontario's is Hudson Bay at 0 feet. Ontario's lowest point is 679 feet lower.
Kansas vs Ontario Population and History
Population: Kansas has a population of 2,970,606 (2024), while Ontario has 16,136,480 (2026). Ontario's population is 5.4 times (443%) larger than Kansas'.
Population density: Kansas: 36.3 people per square mile vs Ontario: 45.5. Ontario's population density is 1.3 times (25%) higher than Kansas'.
Biggest city: Kansas's biggest city is Wichita with 400,991 people; Ontario's is Toronto with 2,794,356. Toronto's population is 7.0 times (597%) larger than Wichita's.
Largest metro area: Kansas's largest metropolitan area is Kansas City, MO-KS metro area (2,253,579 people) vs Ontario's Toronto CMA (6,202,225). Toronto CMA's population is 2.8 times (175%) larger than Kansas City, MO-KS metro area's.
History: Kansas: Admitted to the Union on January 29, 1861, as the 34th state. Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces. In its current form, Kansas is the older of the two by 6 years.
Kansas vs Ontario Economy
GDP: Kansas's GDP is $230.5 billion (2024) vs Ontario's $873.9 billion. Ontario's economic output is 3.8 times (279%) larger than Kansas'.
GDP per capita: Kansas: $77,601 per person vs Ontario: $54,132. Kansas' GDP per capita is 1.4 times (43%) higher than Ontario's.
Official Websites
Kansas official website · Ontario official website
More Size Comparisons
All Kansas 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.