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  • Medicaid Provider Alert: Provider revalidation has begun and those not completing the process risk disenrollment.  Check your account now to learn when your revalidation is due. More information here.

The Child Support Cook Central Office at 36 South Wabash Avenue, Chicago, is closed.  If in-person assistance is required, please visit one our other regional office locations.  The new Cook Central Office, 115 South LaSalle, will open February 10, 2025. 
Cook County Region
Cook Central Office:
temporarily closed
hfs.cookcentral@illinois.gov

Cook Southern Office: 6221 South Emerald Drive, Chicago, IL 60621
hfs.CookSouthern@illinois.gov

Regions

Greater Chicago region:

Cook County

* DuPage, Kane, Kankakee, Lake, Will counties

*In Summer 2014 all of the plans listed in Cook will begin participating in the entire Greater Chicago region.

Rockford region:

Boone, McHenry, Winnebago counties

Central IL region:

Knox, Peoria, Stark, Tazewell counties

McLean, Logan, DeWitt, Sangamon, Macon, Christian, Menard, Piatt, Champaign, Ford, Vermillion counties

Quad Cities region:

Rock Island, Mercer counties

Metro East region:

Madison, Clinton, St Clair counties