The map above shows Ohio and Wales side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Ohio vs Wales Geography
Land area: Ohio has a land area of 40,859 square miles (105,824 km²), while Wales has 8,023 square miles (20,779 km²). Ohio's land area is 5.1 times (409%) larger than Wales'.
Total area: Ohio: 44,826 square miles (116,098 km²) vs Wales: 8,023 square miles (20,779 km²), including inland and coastal water. Ohio's total area is 5.6 times (459%) larger than Wales'.
Length: Ohio is 291 miles (468 km) long from north to south; Wales is 149 miles (239 km). Ohio's north-south length is 2.0 times (95%) longer than Wales'.
Width: Ohio spans 317 miles (510 km) east to west; Wales spans 111 miles (179 km). Ohio's east-west width is 2.9 times (186%) wider than Wales'.
Highest point: Ohio's highest point is Campbell Hill at 1,547 feet (472 m); Wales's is Snowdon (Yr Wyddfa) at 3,560 feet (1,085 m). Snowdon (Yr Wyddfa) is 2,013 feet higher than Campbell Hill.
Lowest point: Ohio's lowest point is Ohio River at 455 feet; Wales's is Irish Sea at 0 feet. Wales's lowest point is 455 feet lower.
Ohio vs Wales Population and History
Population: Ohio has a population of 11,883,304 (2024), while Wales has 3,105,000 (2022). Ohio's population is 3.8 times (283%) larger than Wales'.
Population density: Ohio: 290.8 people per square mile vs Wales: 387.0. Wales' population density is 1.3 times (33%) higher than Ohio's.
Biggest city: Ohio's biggest city is Columbus with 933,263 people; Wales's is Cardiff with 372,089. Columbus' population is 2.5 times (151%) larger than Cardiff's.
History: Ohio: Admitted to the Union on March 1, 1803, as the 17th state. 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 267 years.
Ohio vs Wales Economy
GDP: Ohio's GDP is $923.1 billion (2024) vs Wales's $89.5 billion. Ohio's economic output is 10.3 times larger than Wales'.
GDP per capita: Ohio: $77,684 per person vs Wales: $28,606. Ohio's GDP per capita is 2.7 times (172%) higher than Wales'.
Official Websites
Ohio official website · Wales official website
More Size Comparisons
All Ohio 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.