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School Counselors

Students working in class together
As emerging adults, Centennial High School students will graduate with a strong foundation of personal worth and character, academic confidence, a growth mindset to meet their future career and college goals, and resiliency to navigate obstacles as they become contributing members of society and influence future generations. 

Centennial High School Counseling Department

School counselors are available Monday-Friday from 7:15 AM- 3:15 PM. You can contact your School Counselor via email or you can click on one of the links below to make an appointment to speak to her over the phone. Counselors may also post updates on Schoology.
Heather Trettel

School Counselor (A-E, Y&Z)

Kelli Hillestad
School Counselor (F-K)
Sarah DiMartino
School Counselor (L-Q)
Angela Law
School Counselor (R-X) 
Deanne Miller
Administrative Assistant     

Resources for Students