Illinois is 1.58× the size of Castile and León
Illinois (state of the United States) covers about 150,000 km² (58,000 mi²) and Castile and León (autonomous community of Spain) about 94,800 km² (36,600 mi²). Below, both outlines are drawn at one scale and centred on each other.
- 150,000km²Illinois
- 94,800km²Castile and León
100 km
- Illinois
- Castile and León
What fits
- Castile and León is 63% of the size of Illinois.
- Illinois is larger by 55,400 km² (21,400 mi²), which is 58% of the area of Castile and León.
- Measured in Belgiums: Illinois is about 4.90, Castile and León about 3.09.
How they differ
- Illinois also has the larger population: 12.8 million against 2.4 million, 5.36× as many people.
- Per square kilometre that is 85 in Illinois against 25 in Castile and León: Illinois is 3.39× as densely populated.
- Their centres are about 6,780 km apart.
- Together Illinois and Castile and León cover 245,000 km², close to the size of Guinea (244,000 km², 0.3% smaller).
- The gap between them, 55,400 km², is about the size of Croatia (55,000 km²).
- At Castile and León's density, Illinois would have 3.8 million people (it has 12.8 million). At Illinois's density, Castile and León would have 8.1 million (it has 2.4 million).
- Castile and León's centre is 1.6° of latitude, about 180 km, farther north than Illinois's.
- Illinois is the 24th largest of the 51 states and districts of the United States and covers 1.6% of its area; it is the 14th most densely populated of them.
- Castile and León is the largest of the 19 autonomous communities and cities of Spain and covers 19% of its area; it is the 18th most densely populated of them.
- Both lie at about the same latitude, 40°N and 42°N.
- Shared out evenly, each person in Illinois would have about 11,720 m² and each person in Castile and León about 39,690 m².
- Laid side by side, Illinois and Castile and León would cover 245,000 km², about the same size as Guinea.
- Together they have 15.2 million people, about as many people as Zimbabwe.
Side by side
| Illinois | Castile and León | |
|---|---|---|
| Is a | StateUnited States | Autonomous communitySpain |
| Area, measured | 150,000 km²58,000 mi² | 94,800 km²36,600 mi² |
| Official area | 150,000 km²Wikidata | 94,200 km²Wikidata |
| Rank by area | 24th of 51in the United States | 1st of 19in Spain |
| Population | 12.8 millionWikidata, 2020 | 2.4 millionWikidata, 2024 |
| Rank by population | 6th of 51in the United States | 6th of 19in Spain |
| Density | 85 per km² | 25 per km² |
| Capital | Springfield | – |
| Latitude range | 37°N to 43°N | 40°N to 43°N |
Population: Wikidata 2020 and Wikidata 2024. Official figures: Wikidata (CC0).
- Wikidata's official figure of 150,000 km² agrees with our measured area of 150,000 km², to within 2%.
- Wikidata's official figure of 94,200 km² agrees with our measured area of 94,800 km², to within 2%.
Similar in size to Illinois
Similar in size to Castile and León
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Sources and method
- Outlines
- Natural Earth, 1:10m Admin 1 - States, Provinces, public domain. The outline of Castile and León is the provinces Natural Earth draws there, joined along their shared borders.
- Boundary
- De facto, as drawn by Natural Earth. A region is drawn whole, every island included; a country is its main territory.
- Area
- Measured on the WGS84 ellipsoid from the full-detail outlines, shown rounded.
- Drawing
- Each outline is projected with an equal-area projection centred on its own centroid, so areas stay true and the two can be laid over each other.
- Data built
- 2026-11-12