The map above shows Italy and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Italy vs South Australia Geography
Land area: Italy has a land area of 113,568 square miles (294,140 km²), while South Australia has 380,048 square miles (984,321 km²). South Australia's land area is 3.3 times (235%) larger than Italy's.
Total area: Italy: 116,348 square miles (301,340 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water. South Australia's total area is 3.3 times (227%) larger than Italy's.
Length: Italy is 734 miles (1,181 km) long from north to south; South Australia is 1,078 miles (1,735 km). South Australia's north-south length is 1.5 times (47%) longer than Italy's.
Width: Italy spans 694 miles (1,117 km) east to west; South Australia spans 825 miles (1,328 km). South Australia's east-west width is 1.2 times (19%) wider than Italy's.
Highest point: Italy's highest point is Monte Bianco (Mont Blanc) at 15,778 feet (4,809 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m). Monte Bianco (Mont Blanc) is 11,070 feet higher than Mount Woodroffe.
Lowest point: Italy's lowest point is Jolanda di Savoia at -10 feet; South Australia's is Lake Eyre at -49 feet. South Australia's lowest point is 39 feet lower.
Italy vs South Australia Population and History
Population: Italy has a population of 58,943,673 (2026), while South Australia has 1,908,182 (2025). Italy's population is 30.9 times larger than South Australia's.
Population density: Italy: 519.0 people per square mile vs South Australia: 5.0. Italy's population density is 103.8 times higher than South Australia's.
Largest metro area: Italy's largest metropolitan area is Metropolitan City of Rome (4,223,885 people) vs South Australia's Greater Adelaide (1,491,015). Metropolitan City of Rome's population is 2.8 times (183%) larger than Greater Adelaide's.
History: Italy: Unified as the Kingdom of Italy on March 17, 1861; a republic since 1946. South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836. In its current form, Italy is the older of the two by 40 years.
Italy vs South Australia Economy
GDP: Italy's GDP is $2,551.6 billion (2025) vs South Australia's $100.2 billion. Italy's economic output is 25.5 times larger than South Australia's.
GDP per capita: Italy: $43,309 per person vs South Australia: $52,511. South Australia's GDP per capita is 1.2 times (21%) higher than Italy's.
Official Websites
Italy official website · South Australia official website
More Size Comparisons
All Italy 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.