The map above shows Illinois and England side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Illinois vs England Geography
Land area: Illinois has a land area of 55,513 square miles (143,778 km²), while England has 50,301 square miles (130,279 km²). Illinois' land area is 1.1 times (10%) larger than England's.
Total area: Illinois: 57,913 square miles (149,995 km²) vs England: 50,301 square miles (130,279 km²), including inland and coastal water. Illinois' total area is 1.2 times (15%) larger than England's.
Length: Illinois is 390 miles (628 km) long from north to south; England is 421 miles (678 km). England's north-south length is 1.1 times (8%) longer than Illinois'.
Width: Illinois spans 283 miles (456 km) east to west; England spans 358 miles (576 km). England's east-west width is 1.3 times (27%) wider than Illinois'.
Highest point: Illinois's highest point is Charles Mound at 1,232 feet (376 m); England's is Scafell Pike at 3,209 feet (978 m). Scafell Pike is 1,977 feet higher than Charles Mound.
Lowest point: Illinois's lowest point is Mississippi River at 292 feet; England's is The Fens (Holme Fen) at -10 feet. England's lowest point is 302 feet lower.
Illinois vs England Population and History
Population: Illinois has a population of 12,710,158 (2024), while England has 56,536,000 (2022). England's population is 4.4 times (345%) larger than Illinois'.
Population density: Illinois: 229.0 people per square mile vs England: 1,124.0. England's population density is 4.9 times (391%) higher than Illinois'.
Biggest city: Illinois's biggest city is Chicago with 2,721,308 people; England's is London with 8,825,001. London's population is 3.2 times (224%) larger than Chicago's.
Largest metro area: Illinois's largest metropolitan area is Chicago-Naperville-Elgin, IL-IN metro area (9,408,576 people) vs England's London (10,416,420). London's population is 1.1 times (11%) larger than Chicago-Naperville-Elgin, IL-IN metro area's.
History: Illinois: Admitted to the Union on December 3, 1818, as the 21st state. England: A country within the United Kingdom; unified as a kingdom in 927. In its current form, England is the older of the two by 891 years.
Illinois vs England Economy
GDP: Illinois's GDP is $1,148.1 billion (2024) vs England's $2,249.6 billion. England's economic output is 2.0 times (96%) larger than Illinois'.
GDP per capita: Illinois: $90,330 per person vs England: $39,801. Illinois' GDP per capita is 2.3 times (127%) higher than England's.
Official Websites
Illinois official website · England official website
More Size Comparisons
All Illinois size comparisons · All England 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.