Dear Parents,

The administration of Seneca Township High School welcomes you to Registration 2026-2027!

Seneca High School’s registration for the 2026 - 2027 school year will again be processed electronically.  The on-line registration window will be available beginning Wednesday, July 8th, and will remain open through Tuesday, August 11th.  Early (discounted) registration ends on Friday, July 31st.  Those registering and making full payment within the early registration window will receive a $25.00 discount in registration costs.  Those registering on or after August 1st will pay the regular $150.00 fee.

In order to begin the registration process, I refer you to the letter included from our IT department. Specific instructions are included, regardless of new or returning student(s). The login account you create in PowerSchool is the same login account you will use throughout the year when monitoring your student’s grades and academic progress.  Please be sure to keep your password in a safe spot as we don’t have access to your passwords.

Below is a schedule listing dates and times office staff will be available at Seneca High School if you need assistance completing the on-line registration.  No appointment is necessary, but we do ask that you honor the specific timeframes listed. 

  Date Time                     Location

7/13/26 8:00 a.m. - 3:00 p.m. H.S. Commons 

7/15/26 8:00 a.m. - 3:00 p.m. H.S. Commons

7/17/26 8:00 a.m. - 3:00 p.m. H.S. Commons               

7/27/26                             8:00 a.m. - 3:00 p.m. H.S. Commons                    

7/29/26 8:00 a.m. - 3:00 p.m. H.S. Commons  

8/5/26 8:00 a.m. - 3:00 p.m. H.S. Main Office

8/7/26 8:00 a.m. - 3:00 p.m. H.S. Main Office      

8/10/26 8:00 a.m. - 3:00 p.m. H.S. Main Office

8/11/26 8:00 a.m. - 3:00 p.m. H.S. Main Office

If you experience any trouble or have questions related to the enclosed instructions, please call the school’s main office at 815-357-5000, between the hours of 8:00 a.m. to 3:00 p.m., Monday - Friday.