Best High Schools in Newmarket, Ontario

5 schools ranked by EQAO Grade 9 Math and Grade 10 OSSLT · EQAO Performance Index

5 schools · ← All Ontario Secondary Schools

Local school searchCompare 5 Newmarket high schools and secondary schools in one table.
City and Ontario rankUse local rank for nearby comparisons and Ontario rank for province-wide context.
Current leaderNewmarket High School is the top-ranked school on this page.
Ontario RankBoard RankCity RankSchoolBoardTypeOverall Score2023‑242022‑232021‑223‑Year ChangeWebsite
91171Newmarket High SchoolYork Region DSBPublic8.28.28.27.8+0.4 ↑Visit
249112Sacred Heart Catholic High SchoolYork CDSBCatholic7.37.37.16.6+0.7 ↑Visit
322253Sir William Mulock Secondary SchoolYork Region DSBPublic7.17.17.26.9+0.2 ↑Visit
479294Dr John M Denison Secondary SchoolYork Region DSBPublic6.36.36.86.2+0.1 ↑Visit
485305Huron Heights Secondary SchoolYork Region DSBPublic6.36.36.36.2+0.1 ↑Visit

Ranking Method

Newmarket secondary schools are ranked with the School-Ranking.com EQAO Performance Index. The index uses official EQAO Grade 9 math and Grade 10 OSSLT results, shows the latest available score, and keeps recent-year scores and three-year change visible so readers can compare both performance and trend.

Frequently Asked Questions

What is the top-ranked secondary school in Newmarket, Ontario?

Newmarket High School is currently the top-ranked secondary school in Newmarket on this page, based on the latest available EQAO Performance Index with an overall score of 8.2.

How are Newmarket secondary schools ranked?

Newmarket schools are ordered by Ontario rank and local city rank using official EQAO Grade 9 math and Grade 10 OSSLT results and the site EQAO Performance Index.

Can I compare public, Catholic, and French-language schools in Newmarket?

Yes. The table includes the school board and school type where available, so local families can compare public, Catholic, French-language, and other public-system options together.

Does the city rank replace the Ontario rank?

No. City rank shows how a school compares locally, while Ontario rank shows its position across the full provincial dataset.