The map above shows Connecticut and Japan side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Connecticut vs Japan Geography
Land area: Connecticut has a land area of 4,843 square miles (12,542 km²), while Japan has 140,752 square miles (364,546 km²). Japan's land area is 29.1 times larger than Connecticut's.
Total area: Connecticut: 5,544 square miles (14,358 km²) vs Japan: 145,937 square miles (377,975 km²), including inland and coastal water. Japan's total area is 26.3 times larger than Connecticut's.
Length: Connecticut is 73 miles (118 km) long from north to south; Japan is 1,557 miles (2,505 km). Japan's north-south length is 21.3 times longer than Connecticut's.
Width: Connecticut spans 104 miles (167 km) east to west; Japan spans 1,568 miles (2,524 km). Japan's east-west width is 15.1 times wider than Connecticut's.
Highest point: Connecticut's highest point is Mount Frissell (south slope) at 2,376 feet (724 m); Japan's is Mount Fuji at 12,388 feet (3,776 m). Mount Fuji is 10,012 feet higher than Mount Frissell (south slope).
Lowest point: Connecticut's lowest point is Long Island Sound at 0 feet; Japan's is Hachirogata at -13 feet. Japan's lowest point is 13 feet lower.
Connecticut vs Japan Population and History
Population: Connecticut has a population of 3,675,069 (2024), while Japan has 122,680,000 (2026). Japan's population is 33.4 times larger than Connecticut's.
Population density: Connecticut: 758.9 people per square mile vs Japan: 871.6. Japan's population density is 1.1 times (15%) higher than Connecticut's.
Biggest city: Connecticut's biggest city is Bridgeport with 151,599 people; Japan's is Tokyo with 13,515,271. Tokyo's population is 89.2 times larger than Bridgeport's.
Largest metro area: Connecticut's largest metropolitan area is Hartford-West Hartford-East Hartford, CT metro area (1,169,048 people) vs Japan's Tokyo (33,412,512). Tokyo's population is 28.6 times larger than Hartford-West Hartford-East Hartford, CT metro area's.
History: Connecticut: Admitted to the Union on January 9, 1788, as the 5th 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 1,128 years.
Connecticut vs Japan Economy
GDP: Connecticut's GDP is $356.8 billion (2024) vs Japan's $4,435.2 billion. Japan's economic output is 12.4 times larger than Connecticut's.
GDP per capita: Connecticut: $97,096 per person vs Japan: $35,951. Connecticut's GDP per capita is 2.7 times (170%) higher than Japan's.
Average income: Connecticut: $95,067 vs Japan: $38,340 average income per person (per capita personal income). Connecticut's average income is 2.5 times (148%) higher than Japan's.
Official Websites
Connecticut official website · Japan official website
More Size Comparisons
All Connecticut 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.