The map above shows Pennsylvania and Japan side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Pennsylvania vs Japan Geography
Land area: Pennsylvania has a land area of 44,742 square miles (115,882 km²), while Japan has 140,752 square miles (364,546 km²). Japan's land area is 3.1 times (215%) larger than Pennsylvania's.
Total area: Pennsylvania: 46,054 square miles (119,279 km²) vs Japan: 145,937 square miles (377,975 km²), including inland and coastal water. Japan's total area is 3.2 times (217%) larger than Pennsylvania's.
Length: Pennsylvania is 284 miles (458 km) long from north to south; Japan is 1,557 miles (2,505 km). Japan's north-south length is 5.5 times (448%) longer than Pennsylvania's.
Width: Pennsylvania spans 307 miles (495 km) east to west; Japan spans 1,568 miles (2,524 km). Japan's east-west width is 5.1 times (411%) wider than Pennsylvania's.
Highest point: Pennsylvania's highest point is Mount Davis at 3,210 feet (978 m); Japan's is Mount Fuji at 12,388 feet (3,776 m). Mount Fuji is 9,178 feet higher than Mount Davis.
Lowest point: Pennsylvania's lowest point is Delaware River at 0 feet; Japan's is Hachirogata at -13 feet. Japan's lowest point is 13 feet lower.
Pennsylvania vs Japan Population and History
Population: Pennsylvania has a population of 13,078,751 (2024), while Japan has 122,680,000 (2026). Japan's population is 9.4 times (838%) larger than Pennsylvania's.
Population density: Pennsylvania: 292.3 people per square mile vs Japan: 871.6. Japan's population density is 3.0 times (198%) higher than Pennsylvania's.
Biggest city: Pennsylvania's biggest city is Philadelphia with 1,573,916 people; Japan's is Tokyo with 13,515,271. Tokyo's population is 8.6 times (759%) larger than Philadelphia's.
Largest metro area: Pennsylvania's largest metropolitan area is Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area (6,330,422 people) vs Japan's Tokyo (33,412,512). Tokyo's population is 5.3 times (428%) larger than Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area's.
History: Pennsylvania: Admitted to the Union on December 12, 1787, as the 2nd 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 1,127 years.
Pennsylvania vs Japan Economy
GDP: Pennsylvania's GDP is $1,007.9 billion (2024) vs Japan's $4,435.2 billion. Japan's economic output is 4.4 times (340%) larger than Pennsylvania's.
GDP per capita: Pennsylvania: $77,062 per person vs Japan: $35,951. Pennsylvania's GDP per capita is 2.1 times (114%) higher than Japan's.
Average income: Pennsylvania: $70,678 vs Japan: $38,340 average income per person (per capita personal income). Pennsylvania's average income is 1.8 times (84%) higher than Japan's.
Official Websites
Pennsylvania official website · Japan official website
More Size Comparisons
All Pennsylvania 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.