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State of Illinois |
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Anthem: "Illinois"
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Map of the United States with Illinois highlighted |
Country | United States |
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Before statehood | Illinois Territory |
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Admitted to the Union | December 3, 1818 (21st) |
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Capital | Springfield |
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Largest city | Chicago |
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Largest metro | Chicagoland |
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• Governor | J. B. Pritzker (D) |
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• Lieutenant Governor | Juliana Stratton (D) |
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Legislature | General Assembly |
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• Upper house | Illinois Senate |
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• Lower house | Illinois House of Representatives |
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U.S. senators | Dick Durbin (D) Tammy Duckworth (D) |
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U.S. House delegation | 14 Democrats 3 Republicans (list) |
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• Total | 57,915 sq mi (149,997 km2) |
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• Land | 55,593 sq mi (143,969 km2) |
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• Water | 2,320 sq mi (5,981 km2) 3.99% |
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• Rank | 25th |
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Elevation | 600 ft (180 m) |
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Highest elevation | 1,235 ft (376.4 m) |
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Lowest elevation | 280 ft (85 m) |
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• Total | 12,812,508 |
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• Rank | 6th |
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• Density | 232/sq mi (89.4/km2) |
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• Rank | 12th |
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• Median household income | $65,030 |
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• Income rank | 17th |
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• Official language | English |
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• Spoken language | English (80.8%) Spanish (14.9%) Other (5.1%) |
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Time zone | UTC−06:00 (CST) |
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• Summer (DST) | UTC−05:00 (CDT) |
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USPS abbreviation | IL |
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ISO 3166 code | US-IL |
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Trad. abbreviation | Ill. |
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Latitude | 36° 58′ N to 42° 30′ N |
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Longitude | 87° 30′ W to 91° 31′ W |
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Website | illinois.gov |
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