The map above shows Indiana and Japan side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Indiana vs Japan Geography
Land area: Indiana has a land area of 35,825 square miles (92,787 km²), while Japan has 140,752 square miles (364,546 km²). Japan's land area is 3.9 times (293%) larger than Indiana's.
Total area: Indiana: 36,421 square miles (94,331 km²) vs Japan: 145,937 square miles (377,975 km²), including inland and coastal water. Japan's total area is 4.0 times (301%) larger than Indiana's.
Length: Indiana is 276 miles (444 km) long from north to south; Japan is 1,557 miles (2,505 km). Japan's north-south length is 5.6 times (464%) longer than Indiana's.
Width: Indiana spans 193 miles (310 km) east to west; Japan spans 1,568 miles (2,524 km). Japan's east-west width is 8.1 times (712%) wider than Indiana's.
Highest point: Indiana's highest point is Hoosier Hill at 1,255 feet (383 m); Japan's is Mount Fuji at 12,388 feet (3,776 m). Mount Fuji is 11,133 feet higher than Hoosier Hill.
Lowest point: Indiana's lowest point is Ohio River at 330 feet; Japan's is Hachirogata at -13 feet. Japan's lowest point is 343 feet lower.
Indiana vs Japan Population and History
Population: Indiana has a population of 6,924,275 (2024), while Japan has 122,680,000 (2026). Japan's population is 17.7 times larger than Indiana's.
Population density: Indiana: 193.3 people per square mile vs Japan: 871.6. Japan's population density is 4.5 times (351%) higher than Indiana's.
Biggest city: Indiana's biggest city is Indianapolis with 891,484 people; Japan's is Tokyo with 13,515,271. Tokyo's population is 15.2 times larger than Indianapolis'.
Largest metro area: Indiana's largest metropolitan area is Chicago-Naperville-Elgin, IL-IN metro area (9,408,576 people) vs Japan's Tokyo (33,412,512). Tokyo's population is 3.6 times (255%) larger than Chicago-Naperville-Elgin, IL-IN metro area's.
History: Indiana: Admitted to the Union on December 11, 1816, as the 19th 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 1,156 years.
Indiana vs Japan Economy
GDP: Indiana's GDP is $519.5 billion (2024) vs Japan's $4,435.2 billion. Japan's economic output is 8.5 times (754%) larger than Indiana's.
GDP per capita: Indiana: $75,028 per person vs Japan: $35,951. Indiana's GDP per capita is 2.1 times (109%) higher than Japan's.
Average income: Indiana: $64,077 vs Japan: $38,340 average income per person (per capita personal income). Indiana's average income is 1.7 times (67%) higher than Japan's.
Official Websites
Indiana official website · Japan official website
More Size Comparisons
All Indiana 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.