Public School

Sinclair Secondary School

Whitby, ON · Durham DSB · Grades 9-12

Data from official ON records · Last updated July 11, 2026

9-12 Grades
Public Type
1,655 Enrollment
Whitby City
Durham DSB Board
905-666-5400 Phone
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Contact & School Information

Address
380 Taunton Rd E, L1R2K5
Grades
9-12
Enrollment
1,655 students
Phone
905-666-5400
Website
https://sinclairss.ddsb.ca
School Board
Durham DSB

Location

Neighbourhood Income

Statistics Canada 2021 Census · FSA level
Average After Tax Income
$51,500
Average Total Income
$63,650
Median After Tax Income
$42,800
Median Total Income
$48,000

Based on the forward sortation area (first three characters of the postal code) for this school's address.

Academic Results

EQAO data

This page includes the EQAO results for Sinclair Secondary School from 2024-2025 covering Mathematics in Grade 9. See the source data at EQAO. Expand a year and subject below to see the detailed scores.

Detailed results

2024-2025 · Grade 9 Math · Mathematics · Grade 9
% meeting or exceeding the standard
66.0%

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