The map above shows Ireland and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Ireland vs South Australia Geography
Land area: Ireland has a land area of 26,596 square miles (68,883 km²), while South Australia has 380,048 square miles (984,321 km²). South Australia's land area is 14.3 times larger than Ireland's.
Total area: Ireland: 27,133 square miles (70,273 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water. South Australia's total area is 14.0 times larger than Ireland's.
Length: Ireland is 287 miles (462 km) long from north to south; South Australia is 1,078 miles (1,735 km). South Australia's north-south length is 3.8 times (276%) longer than Ireland's.
Width: Ireland spans 191 miles (308 km) east to west; South Australia spans 825 miles (1,328 km). South Australia's east-west width is 4.3 times (332%) wider than Ireland's.
Highest point: Ireland's highest point is Carrauntoohil at 3,406 feet (1,038 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m). Mount Woodroffe is 1,302 feet higher than Carrauntoohil.
Lowest point: Ireland'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.
Ireland vs South Australia Population and History
Population: Ireland has a population of 5,525,600 (2026), while South Australia has 1,908,182 (2025). Ireland's population is 2.9 times (190%) larger than South Australia's.
Population density: Ireland: 207.8 people per square mile vs South Australia: 5.0. Ireland's population density is 41.6 times higher than South Australia's.
Largest metro area: Ireland's largest metropolitan area is Greater Dublin Area (2,082,605 people) vs South Australia's Greater Adelaide (1,491,015). Greater Dublin Area's population is 1.4 times (40%) larger than Greater Adelaide's.
History: Ireland: Independent since December 6, 1922, as the Irish Free State; a republic since 1949. South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836. In its current form, South Australia is the older of the two by 21 years.
Ireland vs South Australia Economy
GDP: Ireland's GDP is $721.7 billion (2025) vs South Australia's $100.2 billion. Ireland's economic output is 7.2 times (620%) larger than South Australia's.
GDP per capita: Ireland: $131,593 per person vs South Australia: $52,511. Ireland's GDP per capita is 2.5 times (151%) higher than South Australia's.
Official Websites
Ireland official website · South Australia official website
More Size Comparisons
All Ireland 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.