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What is the largest county in Illinois?

Published in Illinois Counties 2 mins read

McLean County is the largest county in Illinois by land area. This central Illinois county stands out for its expansive geographical footprint.

Understanding McLean County's Size

While many might associate the largest county with the most populous, such as Cook County, which is home to Chicago and is the second-most populous county in the United States, McLean County's distinction is purely based on its vast land area. This makes it a significant feature in the geography of the state.

The landscape of Illinois features diverse counties, each with unique characteristics. To illustrate the variety, here's a quick overview of some key counties mentioned in relation to size and population:

Illinois Counties by Key Distinctions

County Name Key Distinction (Based on Land Area or Population)
McLean County Largest by land area
Cook County Most populous; home to Chicago; 2nd most populous in the U.S.
Hardin County Least populous
Putnam County Smallest by land area

This table highlights that "largest" can refer to different metrics, and in the case of McLean County, it specifically refers to its physical size. Illinois, identified by its FIPS state code 17 and postal abbreviation IL, comprises a rich tapestry of such counties, each contributing to the state's unique character.

For more information on the counties of Illinois, you can refer to comprehensive lists available on reputable sources like Wikipedia.