Counties and the pupulation in Illinois: McLean county, Rock Island county, Tazewell county, Kendall county, LaSalle county, Kankakee county, Macon county, DeKalb county, Vermilion county, Adams county, Williamson county, Jackson county | USANearBy.com

Counties in Illinois Cities in Illinois

Map	County Name	Population
	McLean County, IL	169,572
	Rock Island County, IL	147,546
	Tazewell County, IL	135,394
	Kendall County, IL	114,736
	LaSalle County, IL	113,924
	Kankakee County, IL	113,449
	Macon County, IL	110,768
	DeKalb County, IL	105,160
	Vermilion County, IL	81,625
	Adams County, IL	67,103
	Williamson County, IL	66,357
	Jackson County, IL	60,218

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