The map above shows Illinois and Italy side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Illinois vs Italy Geography
Land area: Illinois has a land area of 55,513 square miles (143,778 km²), while Italy has 113,568 square miles (294,140 km²). Italy's land area is 2.0 times (105%) larger than Illinois'.
Total area: Illinois: 57,913 square miles (149,995 km²) vs Italy: 116,348 square miles (301,340 km²), including inland and coastal water. Italy's total area is 2.0 times (101%) larger than Illinois'.
Length: Illinois is 390 miles (628 km) long from north to south; Italy is 734 miles (1,181 km). Italy's north-south length is 1.9 times (88%) longer than Illinois'.
Width: Illinois spans 283 miles (456 km) east to west; Italy spans 694 miles (1,117 km). Italy's east-west width is 2.5 times (145%) wider than Illinois'.
Highest point: Illinois's highest point is Charles Mound at 1,232 feet (376 m); Italy's is Monte Bianco (Mont Blanc) at 15,778 feet (4,809 m). Monte Bianco (Mont Blanc) is 14,546 feet higher than Charles Mound.
Lowest point: Illinois's lowest point is Mississippi River at 292 feet; Italy's is Jolanda di Savoia at -10 feet. Italy's lowest point is 302 feet lower.
Illinois vs Italy Population and History
Population: Illinois has a population of 12,710,158 (2024), while Italy has 58,943,673 (2026). Italy's population is 4.6 times (364%) larger than Illinois'.
Population density: Illinois: 229.0 people per square mile vs Italy: 519.0. Italy's population density is 2.3 times (127%) higher than Illinois'.
Biggest city: Illinois's biggest city is Chicago with 2,721,308 people; Italy's is Rome with 2,748,109. Chicago and Rome have about the same population.
Largest metro area: Illinois's largest metropolitan area is Chicago-Naperville-Elgin, IL-IN metro area (9,408,576 people) vs Italy's Metropolitan City of Rome (4,223,885). Chicago-Naperville-Elgin, IL-IN metro area's population is 2.2 times (123%) larger than Metropolitan City of Rome's.
History: Illinois: Admitted to the Union on December 3, 1818, as the 21st state. Italy: Unified as the Kingdom of Italy on March 17, 1861; a republic since 1946. In its current form, Illinois is the older of the two by 43 years.
Illinois vs Italy Economy
GDP: Illinois's GDP is $1,148.1 billion (2024) vs Italy's $2,551.6 billion. Italy's economic output is 2.2 times (122%) larger than Illinois'.
GDP per capita: Illinois: $90,330 per person vs Italy: $43,309. Illinois' GDP per capita is 2.1 times (109%) higher than Italy's.
Average income: Illinois: $74,522 vs Italy: $42,080 average income per person (per capita personal income). Illinois' average income is 1.8 times (77%) higher than Italy's.
Official Websites
Illinois official website · Italy official website
More Size Comparisons
All Illinois size comparisons · All Italy 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.