The map above shows Ontario and Wales side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Ontario vs Wales Geography
Land area: Ontario has a land area of 354,342 square miles (917,741 km²), while Wales has 8,023 square miles (20,779 km²). Ontario's land area is 44.2 times larger than Wales'.
Total area: Ontario: 415,598 square miles (1,076,395 km²) vs Wales: 8,023 square miles (20,779 km²), including inland and coastal water. Ontario's total area is 51.8 times larger than Wales'.
Length: Ontario is 1,085 miles (1,747 km) long from north to south; Wales is 149 miles (239 km). Ontario's north-south length is 7.3 times (628%) longer than Wales'.
Width: Ontario spans 1,013 miles (1,630 km) east to west; Wales spans 111 miles (179 km). Ontario's east-west width is 9.1 times (813%) wider than Wales'.
Highest point: Ontario's highest point is Ishpatina Ridge at 2,274 feet (693 m); Wales's is Snowdon (Yr Wyddfa) at 3,560 feet (1,085 m). Snowdon (Yr Wyddfa) is 1,286 feet higher than Ishpatina Ridge.
Lowest point: Ontario's lowest point is Hudson Bay at 0 feet; Wales's is Irish Sea at 0 feet. Both lowest points are at or near sea level.
Ontario vs Wales Population and History
Population: Ontario has a population of 16,136,480 (2026), while Wales has 3,105,000 (2022). Ontario's population is 5.2 times (420%) larger than Wales'.
Population density: Ontario: 45.5 people per square mile vs Wales: 387.0. Wales' population density is 8.5 times (751%) higher than Ontario's.
Biggest city: Ontario's biggest city is Toronto with 2,794,356 people; Wales's is Cardiff with 372,089. Toronto's population is 7.5 times (651%) larger than Cardiff's.
History: Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces. Wales: A country within the United Kingdom; formally joined with England by the Laws in Wales Acts of 1536. In its current form, Wales is the older of the two by 331 years.
Ontario vs Wales Economy
GDP: Ontario's GDP is $873.9 billion (2024) vs Wales's $89.5 billion. Ontario's economic output is 9.8 times (876%) larger than Wales'.
GDP per capita: Ontario: $54,132 per person vs Wales: $28,606. Ontario's GDP per capita is 1.9 times (89%) higher than Wales'.
Official Websites
Ontario official website · Wales official website
More Size Comparisons
All Ontario size comparisons · All Wales 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.