CONTACT CCSD21

999 West Dundee Road
Wheeling, Illinois 60090

Phone: 847-537-8270

Hours: 8AM – 4PM

Superintendent: Dr. Michael Connolly

School Board & Administration


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CCSD21 is a school district comprised of 13 schools across 6 different communities in the northwest suburbs of Chicago.

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School District 21 prides itself on its Professional Learning Community and its rich tradition of professional collaboration, high levels of professional development, and family-like atmosphere. If you see the opportunity to work with colleagues in making a difference in the lives of students and families in a truly diverse setting, School District 21 seeks your application.

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Lockdown at Holmes Middle School

October 4, 2022

Topic: Unassigned

At approximately noon, Holmes Middle School administration responded to a report of a weapon in the school. The Wheeling Police Department was dispatched and arrived on the scene. School administration followed the District protocol and placed the school on lockdown while the police determine whether  the weapon is an airsoft gun. 

Students are safe. The District will continue to update parents via ParentSquare. 

The safety of our students is the District’s first priority. Support staff are on hand to provide support and assistance as needed.