Public Salaries
Ontario public pay

Mark Aitken

Chief Administrative Officer at County Of Simcoe. On Ontario’s disclosure list 23 years between 2003 and 2025.

Salary disclosure2025
Mark Aitken
Chief Administrative Officer
County Of Simcoe
Salary paid
$336,830.82
Taxable benefits
$1,972.15
Total disclosed
$338,802.97
Source: Government of Ontario, Public Sector Salary Disclosure Act, 1996. © King’s Printer for Ontario.
Change from 2024: +$33,136 (+10.9%)
23years on
the list

Among 303 people with the title “Chief Administrative Officer” in 2025

Paid more than 94% of them. Their median: $199,653.

Among 584 people at County Of Simcoe in 2025

1st highest paid. Their median: $115,219.

Paid more than 99% of everyone on the 2025 disclosure list, which only lists people paid $100,000 or more.

middle 80%middle halfmedianthis personspacing grows with pay (log scale)

Salary by year

Show as a table
YearSalaryMedian for the job
2003$104,857
2004$130,019
2005$151,418$125,529
2006$175,602$127,506
2007$189,657$130,047
2008$206,174$132,455
2009$203,392$135,063
2010$205,227$135,319
2011$207,310$140,254
2012$252,353$138,872
2013$239,962$145,482
2014$252,259$149,348
2015$260,669$152,551
2016$265,879$151,056
2017$269,771$156,087
2018$278,804$165,848
2019$288,596$167,053
2020$282,206$171,093
2021$288,227$172,484
2022$298,277
2023$303,884$188,026
2024$303,695$193,992
2025$336,831$199,653

History

YearEmployer and jobSalaryBenefitsChange
2025County Of SimcoeChief Administrative Officer$336,831$1,972+$33,136
2024County Of SimcoeChief Administrative Officer$303,695$1,981−$189
2023County Of SimcoeChief Administrative Officer$303,884$2,102+$5,607
2022County Of SimcoeChief, Administrative Officer$298,277$2,558+$10,050
2021County Of SimcoeChief Administrative Officer$288,227$2,828+$6,021
2020County Of SimcoeChief Administrative Officer$282,206$2,900−$6,389
2019County Of SimcoeChief Administrative Officer$288,596$2,818+$9,791
2018County Of SimcoeChief Administrative Officer$278,804$1,515+$9,033
2017County Of SimcoeChief Administrative Officer$269,771$1,169+$3,892
2016County Of SimcoeChief Administrative Officer$265,879$1,057+$5,210
2015County Of SimcoeChief Administrative Officer$260,669$1,117+$8,410
2014County Of SimcoeChief Administrative Officer$252,259$1,253+$12,297
2013County Of SimcoeChief Administrative Officer$239,962$1,426−$12,391
2012County Of SimcoeChief Administrative Officer$252,353$1,372+$45,043
2011County Of SimcoeChief Administrative Officer$207,310$1,159+$2,083
2010County Of SimcoeChief Administrative Officer$205,227$1,124+$1,835
2009County Of SimcoeChief Administrative Officer$203,392$1,102−$2,782
2008County Of SimcoeChief Administrative Officer$206,174$1,011+$16,517
2007County Of SimcoeChief Administrative Officer$189,657$549+$14,056
2006Corporation of the County of SimcoeChief Administrative Officer · moved here$175,602$407+$24,183
2005County Of SimcoeChief Administrative Officer$151,418$397+$21,400
2004County Of SimcoeGM Corporate Services$130,019$347+$25,162
2003County Of SimcoeGM., Corporate Services$104,857$281

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