Diane Johnstone
Education/Student Achievement Officer
2025 Salary
$149,719Total compensation $149,904, including $185 in taxable benefits.
Source: Ontario’s Public Sector Salary Disclosure — names paid $100,000 or more that year. How we build this · Report an error on this page
At a Glance
2025
Employer Rank
#132Education
Years on List
72019–2025
Peak Salary
$149,7192025
Full 2025 roster at Education →·See where $149,719 ranks →
Total Compensation History
Full History
2019–2025
$122,475 in 2019 is worth about $147,870 in 2025 dollars.
| Year | Position | Salary |
|---|---|---|
| 2025 | Student Achievement OfficerEducation | $149,719Benefits $185Total $149,904 |
| 2024 | Student Achievement OfficerEducation | $146,867Benefits $177Total $147,045 |
| 2023 | Student Achievement Officer / Agente du rendement des élèvesEducation / Éducation | $131,909Benefits $170Total $132,080 |
| 2022 | Student Achievement OfficerEducation | $128,823Benefits $168Total $128,990 |
| 2021 | Student Achievement OfficerEducation | $127,418Benefits $166Total $127,584 |
| 2020 | Student Achievement OfficerEducation | $124,917Benefits $163Total $125,080 |
| 2019 | Student Achievement OfficerEducation | $122,475Benefits $163Total $122,638 |
Take-Home Pay
(After Tax) · 2025 estimate
Take-home on Diane Johnstone's 2025 salary of $149,719 comes to roughly $103,710 once federal and Ontario income tax (about 27.1% effective) is deducted. Within Education, Diane Johnstone's total compensation of $149,904 was the #132 of 756, against a median salary of $127,198. Diane Johnstone has appeared on the list 7 times since 2019. Pension contributions — likely PSPP or OPTrust in the Government of Ontario – Ministries sector — would typically trim another 7–10% off that figure.
- Estimated net pay
- ~$103,710
- Effective income-tax rate (excl. CPP/EI)
- ~27.1%
- CPP + EI contributions
- ~$5,507
- All-in deduction rate (incl. CPP/EI)
- ~30.7%
- vs. 2025 Student Achievement Officer median
- +2%
Where does $149,719 rank on the Sunshine List? →
Estimate only: 2025 federal and Ontario rates, basic personal amounts, Canada employment amount and CPP/EI credits; single, employment income only, salary treated as full-year income. Ignores pension contributions (OMERS, HOOPP, OTPP, OPTrust and similar plans lower actual take-home), union dues, RRSPs and benefits.