Welcome to Our New Website! Thank you for visiting our new website! Please check back often as updates are made, and click on article headlines to view full stories where applicable.Please click the Show All News button for more. Published June 20, 2025
Main Office Summer Hours Tues. - Wed. - Thurs. 8 am - 12 pmFor an off hours appointment, please call us at 773-534-1180(The office will be closed 7/28 thru 8/1) Published June 27, 2025
The School News mobile app is now available for Onahan. Download the School News mobile app! Published July 3, 2025