The map above shows Connecticut and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Connecticut vs South Australia Geography
Land area
- Connecticut has a land area of 4,843 square miles (12,542 km²), while South Australia has 380,048 square miles (984,321 km²).
- South Australia's land area is 78.5 times larger than Connecticut's.
Total area
- Connecticut: 5,544 square miles (14,358 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water.
- South Australia's total area is 68.6 times larger than Connecticut's.
Length
- Connecticut is 73 miles (118 km) long from north to south; South Australia is 1,078 miles (1,735 km).
- South Australia's north-south length is 14.8 times longer than Connecticut's.
Width
- Connecticut spans 104 miles (167 km) east to west; South Australia spans 825 miles (1,328 km).
- South Australia's east-west width is 7.9 times (693%) wider than Connecticut's.
Highest point
- Connecticut's highest point is Mount Frissell (south slope) at 2,376 feet (724 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m).
- Mount Woodroffe is 2,332 feet higher than Mount Frissell (south slope).
Lowest point
- Connecticut's lowest point is Long Island Sound at 0 feet; South Australia's is Lake Eyre at -49 feet.
- South Australia's lowest point is 49 feet lower.
Connecticut vs South Australia Population and History
Population
- Connecticut has a population of 3,675,069 (2024), while South Australia has 1,908,182 (2025).
- Connecticut's population is 1.9 times (93%) larger than South Australia's.
Population density
- Connecticut: 758.9 people per square mile vs South Australia: 5.0.
- Connecticut's population density is 151.8 times higher than South Australia's.
Largest metro area
- Connecticut's largest metropolitan area is Hartford-West Hartford-East Hartford, CT metro area (1,169,048 people) vs South Australia's Greater Adelaide (1,491,015).
- Greater Adelaide's population is 1.3 times (28%) 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.
- South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836.
- In its current form, Connecticut is the older of the two by 113 years.
Connecticut vs South Australia Economy
GDP
- Connecticut's GDP is $356.8 billion (2024) vs South Australia's $100.2 billion.
- Connecticut's economic output is 3.6 times (256%) larger than South Australia's.
GDP per capita
- Connecticut: $97,096 per person vs South Australia: $52,511.
- Connecticut's GDP per capita is 1.8 times (85%) higher than South Australia's.
Official Websites
Connecticut official website · South Australia official website
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More Size Comparisons
All Connecticut size comparisons · All South Australia 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.