Durham Catholic District School Board DCDSB
Oshawa, Ontario · Catholic · English
Students
21,800
2022-2023 enrolment
Schools
48
40 elementary · 8 secondary
First day
Tuesday, September 8, 2026
2026-2027
Last day
Tuesday, June 29, 2027
2026-2027
DCDSB Calendar 2026-2027
All 2 DCDSB calendars on one page: Elementary, Secondary.
Original calendar documents
Published by DCDSB. Select a page to view it at full size.
EQAO performance
Students at or above the provincial standard (2022-2023, EQAO). Green means at or above the Ontario average.
Grade 3
Reading
-4 vs ON
Writing
-3.8 vs ON
Math
-16.3 vs ON
Grade 6
Reading
-3.2 vs ON
Writing
+7.3 vs ON
Math
-15.3 vs ON
Secondary
G9 Math
-3.6 vs ON
OSSLT
-5.9 vs ON
How DCDSB ranks in Ontario
Ranked against the 76 Ontario school boards with published EQAO results, by the mean of the assessments each board sat (2022-2023).
Overall rank
#18 of 76
Percentile
77
higher is stronger
Mean at or above standard
69.3%
DCDSB places highest on OSSLT Literacy (#8 of 71) and lowest on Grade 3 Writing (#29 of 75).
| Assessment | At or above standard | Rank in Ontario | Percentile |
|---|---|---|---|
| OSSLT Literacy | 87.1% | #8 of 71 | 90 |
| Grade 6 Writing | 86.3% | #11 of 75 | 86 |
| Grade 6 Reading | 85.8% | #12 of 75 | 85 |
| Grade 9 Math | 54.4% | #13 of 71 | 83 |
| Grade 6 Math | 47.7% | #22 of 75 | 72 |
| Grade 3 Math | 58.7% | #27 of 75 | 65 |
| Grade 3 Reading | 71% | #28 of 75 | 64 |
| Grade 3 Writing | 63.2% | #29 of 75 | 62 |
Schools
48 total- Elementary schools
- 40
- Secondary schools
- 8
- Students enrolled
- 21,800
Individual school profiles for DCDSB are not on HeySchool yet. The board's own directory lists them all, and the EQAO figures above already cover every one of its 48 schools.
DCDSB school directory ↗