How Big Is Illinois?
Illinois is the 24th largest state in the United States, covering approximately 143,961 square kilometers (55,584 square miles). It is home to approximately 12.8 million people. That's roughly the same size as Florida.
Illinois
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Illinois on the Map
Illinois's Geography
Within the United States, Illinois is the 24th largest state in the United States. Its capital is Springfield. It has a population density of about 89 people per km².
How Far Across Is Illinois?
Illinois stretches approximately 614 km (382 mi) from north to south — roughly the distance from Paris to Berlin, and 343 km (213 mi) from east to west — roughly the distance from Los Angeles to Las Vegas. At highway speeds, it would take roughly 4 hours to drive across.
How Many Times Does Illinois Fit?
Similar in Size
How Big Is Illinois Compared to Well-Known Places?
| Place | Area | vs Illinois |
|---|---|---|
| Netherlands | 41,543 km² (16,040 sq mi) | 3.5× smaller |
| South Korea | 99,720 km² (38,502 sq mi) | 31% smaller |
| New York | 122,283 km² (47,214 sq mi) | 15% smaller |
| Florida | 139,670 km² (53,927 sq mi) | about the same size |
| Illinois | 143,961 km² (55,584 sq mi) | — |
| United Kingdom | 243,610 km² (94,058 sq mi) | 69% larger |
| Germany | 357,022 km² (137,847 sq mi) | 2.5× larger |
| Montana | 376,979 km² (145,552 sq mi) | 2.6× larger |
| Japan | 377,915 km² (145,914 sq mi) | 2.6× larger |
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Illinois at a Glance
| Statistic | Value |
|---|---|
| Total Area | 143,961 km² (55,584 sq mi) |
| US Size Rank | #24 of 51 |
| Capital | Springfield |
| Population | 12,830,632 |
| Population Density | 89 per km² |