Duncan Kosziwka was paid $130,695.20 in total compensation as Teacher at Dufferin-Peel Catholic District School Board in 2025, 31% above Ontario's $100,000.00 Sunshine List threshold.
Duncan Kosziwka has appeared on the Ontario Sunshine List 5 times since 2020, earning $557K in combined disclosed pay — an average of $111,353.00 a year, up 29% over that span.
That is 5% above the average disclosed pay of $124,627.17 across 4,239 listed Dufferin-Peel Catholic District School Board employees.
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5 years on the list
Annual total compensation (CAD) — hover to inspect.
The career in numbers
Totals, averages, and the biggest moves — all total compensation.
A career, year by year.
How Duncan Kosziwka's total compensation has moved across 5 years on the Ontario Sunshine List.
Year-by-year history
5 years on the Sunshine List.
| Year | Total Compensation | Change |
|---|---|---|
2025Latest★ Best | $130,695.20 | ▲ 9.2% |
2024 | $119,655.98 | ▲ 16.8% |
2022 | $102,487.82 | ▲ 0.1% |
2021 | $102,381.44 | ▲ 0.8% |
2020First | $101,542.81 | — |
| 5 years total | $557K total | $111,353.00 avg |
The record
Source data and how to request a correction.
Employee details
- Position
- Teacher
- Sector
- —
- Province
- Ontario
- First appeared
- 2020
- Latest disclosure
- 2025
- Years on list
- 5
Data source
Salary data is published annually by the Ontario government under the Public Sector Salary Disclosure Act. Only employees earning $100,000+ are disclosed.
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