Open Enrollment

Service Information


Open Enrollment is your one time of the year to verify your personal benefits information, make any changes you wish to your plan elections, enroll in a flexible spending account (FSA) and add or remove dependents. 

Enrollment requires using Employee Self-Service (ESS).You may also log in to ESS from a computer outside of the County's network. Required documentation must be scanned and uploaded to ESS in order to complete enrollment for dependents. For assistance with logging into ESS, please contact your agency's Help Desk.

Online Open Enrollment Assistance 

If you need assistance with enrollment, schedule an one on one appointment with a member of the Employee Benefits staff. If you need to cancel your appointment, please notify our office through email

Enrollment Resource Links

REMEMBER: Any changes you make to plan elections during the Open Enrollment period go into effect the start of the new plan years (December 1st for all benefits except FSA, which is January 1st). If you enroll in the health care or dependent care FSA, deductions will begin with the first pay check of the calendar year.

Open Enrollment: Information Sessions

Employee Benefits staff will be conducting Information Sessions both virtually and onsite this year.

Virtual Sessions

Virtual sessions will be hosted at 9:30 a.m., 11:00 a.m. and 2 p.m. on Wednesdays throughout October and will provide you with an overview of your benefit plan options, the Open Enrollment schedule and new plan features. Click on the tabs below to view more details about the presenters for each session and to find a link to join the live session. Links to the recorded session will be added here after each session.

    Presented By: Cook County Employee Benefits

    Topics Covered: 2024 Open Enrollment: Choice Matters - Enroll 2024

    Click here to view recording


    Presented By: Blue Cross Blue Shield of Illinois

    Topics Covered: Medical Plans Overview


    Presented By: ComPsych

    Topics Covered: EAP: Guidance Resources Program

    This session will be recorded 

    Click here to watch the recording


    Presented By: Optum Financial

    Topics covered: Flexible Spending Options and Commuter Benefits

    This session will be recorded

    Click here to watch the recording


    Presented By: Mercer

    Topics covered: Cook County Voluntary Benefits

    Click here to watch the recording


    Presented By: Nationwide Retirement Solutions

    Topics covered: Myths and Realities

    Click here to watch the recording

    Onsite Events

    Staff will also be onsite at 4 Cook County locations during Open Enrollment to answer your benefits enrollment questions and provide you with more information around the process and what is new in 2023.

      Tuesday 10/17/2023

      10 a.m. to 3 pm.

      Juvenile Temporary Detention Center, Auditorium

      Thursday 10/19/2023

      10 a.m. to 3 p.m.

      Stroger Hospital, Lower Level Cafeteria

      Tuesday 10/24/2023

      10 a.m. to 3 p.m.

      County Building, 7th Floor

      Thursday 10/26/2023

      10 a.m. to 3 p.m.

      Criminal Courts Building, 2nd Floor Cafeteria

      More Information on Benefits

      In addition to providing employees with a challenging, rewarding environment for career and personal growth, we are proud to also offer some of the best benefits in the public sphere, including:

        ComPsych® GuidanceResources® will replace Magellan Healthcare as Cook County’s Employee Assistance Program (EAP). Employees and their dependents can use confidential EAP services at no cost, copayments or deductibles. Trained mental health professionals are available 24/7 to counsel you and household members with many of life’s challenges.

        ComPsych Member Flyer