Don Mills Collegiate Institute
high school in Toronto, Ontario, Canada

Don Mills Collegiate Institute is a high school in Toronto, Ontario, Canada. Located in the Don Mills neighbourhood, it serves an ethnically diverse student population of approximately 1000. As of 2017, 67% of students speak a first language other than English. The school opened in 1959.
Location
Initially, the board planned to build two separate schools on the site with a shared heating plant, but in October 1957, trustee Dorothy Bishop prepared a report which raised the possibility of saving money by placing the two schools under one roof, as had previously been done in Vancouver and Calgary.
DMCI shares its building with Don Mills Middle School (formerly Don Mills Junior High); however, the two schools have different street addresses and the buildings are designed in a way that keeps the two schools separated except for a common library and connecting hallways. The auditorium located within the collegiate building is also occasionally used by Don Mills Middle School. Additionally, a number of rooms in the middle school are used to teach high school students, possibly due to the lack of available space in the collegiate half of the building.
Special programs
Gifted
Don Mills Collegiate has a gifted program for students. The program was moved to DMCI in 1997 from Earl Haig Secondary School and has increased the number of students in the school.
This brief starts where responsible research should: with the source description of “Don Mills Collegiate Institute” as high school in Toronto, Ontario, Canada. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the history & society register because the source frames it as high school in Toronto, Ontario, Canada. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Contemporary correspondence, administrative files and participant testimony can test how later narratives organized the event or institution. The source revision retrieved here is dated Aug 7, 2026. The linked authority identifier is Q5293158. Authority coordinates are 43.736, -79.339. 2 of 3 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1000, 2017, 1959 and 1957.
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This entry incorporates text from “Don Mills Collegiate Institute” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.