The map above shows Oklahoma and Japan side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Oklahoma vs Japan Geography
Land area
- Oklahoma has a land area of 68,597 square miles (177,665 km²), while Japan has 140,752 square miles (364,546 km²).
- Japan's land area is 2.1 times (105%) larger than Oklahoma's.
Total area
- Oklahoma: 69,899 square miles (181,038 km²) vs Japan: 145,937 square miles (377,975 km²), including inland and coastal water.
- Japan's total area is 2.1 times (109%) larger than Oklahoma's.
Length
- Oklahoma is 533 miles (857 km) long from north to south; Japan is 1,557 miles (2,505 km).
- Japan's north-south length is 2.9 times (192%) longer than Oklahoma's.
Width
- Oklahoma spans 490 miles (789 km) east to west; Japan spans 1,568 miles (2,524 km).
- Japan's east-west width is 3.2 times (220%) wider than Oklahoma's.
Highest point
- Oklahoma's highest point is Black Mesa at 4,980 feet (1,518 m); Japan's is Mount Fuji at 12,388 feet (3,776 m).
- Mount Fuji is 7,408 feet higher than Black Mesa.
Lowest point
- Oklahoma's lowest point is Little River at 289 feet; Japan's is Hachirogata at -13 feet.
- Japan's lowest point is 302 feet lower.
Oklahoma vs Japan Population and History
Population
- Oklahoma has a population of 4,095,393 (2024), while Japan has 122,680,000 (2026).
- Japan's population is 30.0 times larger than Oklahoma's.
Population density
- Oklahoma: 59.7 people per square mile vs Japan: 871.6.
- Japan's population density is 14.6 times higher than Oklahoma's.
Biggest city
- Oklahoma's biggest city is Oklahoma City with 712,919 people; Japan's is Tokyo with 13,515,271.
- Tokyo's population is 19.0 times larger than Oklahoma City's.
Largest metro area
- Oklahoma's largest metropolitan area is Oklahoma City, OK metro area (1,497,821 people) vs Japan's Tokyo (33,412,512).
- Tokyo's population is 22.3 times larger than Oklahoma City, OK metro area's.
History
- Oklahoma: Admitted to the Union on November 16, 1907, as the 46th state.
- Japan: An independent state for over two millennia; the current constitution dates from 1947.
- In its current form, Japan is the older of the two by 1,247 years.
Oklahoma vs Japan Economy
GDP
- Oklahoma's GDP is $263.7 billion (2024) vs Japan's $4,435.2 billion.
- Japan's economic output is 16.8 times larger than Oklahoma's.
GDP per capita
- Oklahoma: $64,388 per person vs Japan: $35,951.
- Oklahoma's GDP per capita is 1.8 times (79%) higher than Japan's.
Average income
- Oklahoma: $63,708 vs Japan: $38,340 average income per person (per capita personal income).
- Oklahoma's average income is 1.7 times (66%) higher than Japan's.
Official Websites
Oklahoma official website · Japan official website
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More Size Comparisons
All Oklahoma size comparisons · All Japan 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.