Welcome to Superintendent Services

    4160 86th AVE SE • Mercer Island WA 98040-4121 • FAX 206-236-3333
    Donna Colosky Superintendent 206-236-3300
    Michelle Mueller Executive Assistant 206-236-3300
    Ian Henry Communications and Alumni Relations Coordinator 206-236-4514



    Superintendent Donna Colosky 

    Donna Colosky joined the Mercer Island School District as superintendent on Aug. 1, 2017.  Donna Colosky

    Colosky previously served as superintendent for Paradise Unified School District (PUSD) in Paradise, Calif.  She brings 19 years of experience in educational leadership and 32 years total in public education. In her previous position, Colosky was responsible for leading the second-largest district in rural Butte County of Northern California and the second-largest employer in the town of Paradise. Under her leadership, Google Apps for Education were implemented and the PUSD has moved towards 1-to-1 Chromebooks, along with a focus on professional development on best practices for instruction and setting the pathway as a Future-Ready District. 

    Colosky previously spent 27 years in the Apple Valley Unified School District in the High Desert area of Southern California. During her tenure, her positions included assistant superintendent of human resources, director of curriculum and instruction, principal in charge of establishing a new, technology-based elementary school, elementary principal, assistant principal, master/mentor teacher and classroom teacher. Before joining Apple Valley Unified School District, Colosky was an elementary teacher, teaching primary grades and school-wide music.

    Colosky received her master’s in Educational Leadership and administrative services credential from Chapman University. She earned her Bachelor of Music, as well as her teaching certificate, from the University of British Columbia. She was raised in Burnaby, B.C.

    Colosky and her husband of 30 years have two grown children, both of whom attended K-12 public schools and graduated from public universities. In her time spent outside of her passion for education, Donna enjoys snow skiing, hiking, kayaking as well as reading, gardening and yoga.