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State Guide21st StateEst. 1818
Illinois State Flag

Illinois

"The Prairie State"

Home to one of the world's great cities, the Land of Lincoln, the birthplace of the skyscraper, and the global center of futures trading. Illinois is a state of enormous contrasts, towering lakefront skylines and flat prairie farmland, world-class cultural institutions and a political corruption legacy that is genuinely unrivaled. Few states have shaped American history, culture, and commerce more deeply.

21st
State admitted to the Union
12.5M
Population, 6th largest state
3rd
Largest city in America (Chicago)
#1
Nuclear power-producing state

About Illinois

Illinois is a state of extraordinary duality. Chicago , its dominant city, is a global metropolis of 2.7 million people, one of the great cultural and financial capitals of the world. But Illinois is also a flat prairie state where corn and soybean fields stretch to the horizon, small towns anchor agricultural communities, and Springfield, the state capital, has population of barely 110,000.

The tension between Chicago and "downstate" Illinois is among the most pronounced urban-rural divides in American politics. The city and its suburbs reliably vote Democratic; much of the rest of the state just as reliably votes Republican. Because the population is concentrated in the metro area, Illinois votes Democratic in statewide elections, but the political map below Chicago looks nothing like New York or California.

Historically, Illinois is the Land of Lincoln, the state where Abraham Lincoln built his career, launched his presidency, and was buried. It is also the state that gave America the skyscraper, improv comedy, the blues, and financial futures. And it holds the dubious distinction of having sent more governors to federal prison than any other state, a political corruption tradition that has defined and plagued its governance for generations.

Chicago's iconic skyline reflecting in Lake Michigan at dusk

Geography, Four Distinct Regions

Illinois runs 380 miles north to south, from the lakefront skyscrapers of Chicago to the river bluffs of "Little Egypt" in the south.

The Chicago Board of Trade and financial district skyscrapers along LaSalle Street in downtown Chicago

Economy

Illinois has the fifth-largest state economy in the nation, anchored by Chicago's financial and tech sectors and balanced by one of the most productive agricultural regions on Earth.

Garden of the Gods sandstone rock formations in Shawnee National Forest, southern Illinois