The map above shows Rhode Island and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Rhode Island vs South Australia Geography
Land area: Rhode Island has a land area of 1,034 square miles (2,678 km²), while South Australia has 380,048 square miles (984,321 km²). South Australia's land area is 367.6 times larger than Rhode Island's.
Total area: Rhode Island: 1,545 square miles (4,002 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water. South Australia's total area is 246.0 times larger than Rhode Island's.
Length: Rhode Island is 61 miles (98 km) long from north to south; South Australia is 1,078 miles (1,735 km). South Australia's north-south length is 17.7 times longer than Rhode Island's.
Width: Rhode Island spans 42 miles (67 km) east to west; South Australia spans 825 miles (1,328 km). South Australia's east-west width is 19.6 times wider than Rhode Island's.
Highest point: Rhode Island's highest point is Jerimoth Hill at 811 feet (247 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m). Mount Woodroffe is 3,897 feet higher than Jerimoth Hill.
Lowest point: Rhode Island's lowest point is Atlantic Ocean at 0 feet; South Australia's is Lake Eyre at -49 feet. South Australia's lowest point is 49 feet lower.
Rhode Island vs South Australia Population and History
Population: Rhode Island has a population of 1,112,308 (2024), while South Australia has 1,908,182 (2025). South Australia's population is 1.7 times (72%) larger than Rhode Island's.
Population density: Rhode Island: 1,075.8 people per square mile vs South Australia: 5.0. Rhode Island's population density is 215.2 times higher than South Australia's.
Largest metro area: Rhode Island's largest metropolitan area is Providence-Warwick, RI-MA metro area (1,700,901 people) vs South Australia's Greater Adelaide (1,491,015). Providence-Warwick, RI-MA metro area's population is 1.1 times (14%) larger than Greater Adelaide's.
History: Rhode Island: Admitted to the Union on May 29, 1790, as the 13th state. South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836. In its current form, Rhode Island is the older of the two by 111 years.
Rhode Island vs South Australia Economy
GDP: Rhode Island's GDP is $80.4 billion (2024) vs South Australia's $100.2 billion. South Australia's economic output is 1.2 times (25%) larger than Rhode Island's.
GDP per capita: Rhode Island: $72,265 per person vs South Australia: $52,511. Rhode Island's GDP per capita is 1.4 times (38%) higher than South Australia's.
Official Websites
Rhode Island official website · South Australia official website
More Size Comparisons
All Rhode Island 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.