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The Top 10 Health Insurance Companies in Illinois

The 10 biggest health insurers in Illinois are listed below, ranked by market share according to the latest data available from the National Association of Insurance Commissioners in early 2011.

Rank	Insurer
#1	Health Care Service Corp.
#2	Unitedhealthcare Ins. Co.
#3	Health Alliance Medical Plans
#4	Humana Ins. Co.
#5	Aetna Life Ins. Co.
#6	Humana Health Plan Inc.
#7	Harmony Health Plan of IL Inc.
#8	United Healthcare Ins. Co. of IL
#9	Unicare Health Ins. Co. of The Midwest
#10	Personalcare Ins. of IL Inc.

Note: Additional data about these and other providers are available for purchase.

The Top 10 Health Insurance Companies in Illinois

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