Diane Johnstone
Student Achievement Officer at Education. On Ontario’s disclosure list 10 years between 2015 and 2025.
- Salary paid
- $149,719.05
- Taxable benefits
- $184.80
- Total disclosed
- $149,903.85
Change from 2024: +$2,852 (+1.9%)10years on
the list
Among 27 people with the title “Student Achievement Officer” in 2025
Paid more than 55% of them. Their median: $146,918.
Among 756 people at Education in 2025
116th highest paid. Their median: $127,198.
Paid more than 80% of everyone on the 2025 disclosure list, which only lists people paid $100,000 or more.
Salary by year
Show as a table
| Year | Salary | Median for the job |
|---|---|---|
| 2015 | $124,357 | $116,284 |
| 2016 | $121,441 | $117,449 |
| 2017 | $122,475 | $119,466 |
| 2019 | $122,475 | $122,475 |
| 2020 | $124,917 | $124,917 |
| 2021 | $127,418 | $127,418 |
| 2022 | $128,823 | $128,823 |
| 2023 | $131,909 | $131,865 |
| 2024 | $146,867 | $146,852 |
| 2025 | $149,719 | $146,918 |
History
| Year | Employer and job | Salary | Benefits | Change |
|---|---|---|---|---|
| 2025 | EducationStudent Achievement Officer | $149,719 | $185 | +$2,852 |
| 2024 | EducationStudent Achievement Officer | $146,867 | $177 | +$14,958 |
| 2023 | Education / ÉducationStudent Achievement Officer / Agente du rendement des élèves · moved here | $131,909 | $170 | +$3,087 |
| 2022 | EducationStudent Achievement Officer | $128,823 | $168 | +$1,404 |
| 2021 | EducationStudent Achievement Officer | $127,418 | $166 | +$2,501 |
| 2020 | EducationStudent Achievement Officer | $124,917 | $163 | +$2,443 |
| 2019 | EducationStudent Achievement Officer · moved here | $122,475 | $163 | |
| 2017 | Halton District School BoardStudent Achievement Officer / Agente du rendement des élève | $122,475 | $220 | +$1,034 |
| 2016 | Halton District School BoardStudent Achievement Officer | $121,441 | $150 | −$2,916 |
| 2015 | Halton District School BoardStudent Achievement Officer / Agente du rendement des élèves | $124,357 | $220 |
Compare
Questions and answers
Why is Diane Johnstone on the disclosure list?
Education paid Diane Johnstone $149,719 in 2025. Ontario’s public employers must disclose everyone they paid $100,000 or more in a calendar year, under the Public Sector Salary Disclosure Act, 1996.
What does “salary paid” include?
What the employer paid in the calendar year, so it can include overtime, retroactive pay, vacation payouts, severance or a partial year. Taxable benefits are listed separately. How the lists work
What do the comparisons mean?
Ranks and shares are among people on the same year’s list only: those with the same title, those at the same employer, or everyone listed. People paid under $100,000 are not on the list, so they are not counted.
How do I report a mistake or ask for a record to be removed?
Privacy and corrections explains both. Figures are shown exactly as Ontario published them; we fix matching mistakes and handle removal requests there.
Years at different employers were matched because the name appears once on each year’s list with the same job or sector. Salary paid can include overtime, retroactive pay and one-time payments. Figures are exactly as Ontario published them. How we match years · Report a mistake or ask for removal