Mark Aitken

$336,830.82asChief Administrative Officer+10.91%

Employed by County Of Simcoe in 2025, according to Government of Ontario public salary records.

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Position

Chief Administrative Officer

Employer

County Of Simcoe

Salary Information

Historical salary and taxable benefits from 2003 to 2025.

Year	Position	Salary	Benefits	Performance
2025	Chief Administrative Officer	$336,830.82	$1,972.15	10.91%
2024	Chief Administrative Officer	$303,695.02	$1,981.34	0.06%
2023	Chief Administrative Officer	$303,883.96	$2,102.07	1.88%
2022	Chief, Administrative Officer	$298,277.46	$2,558.28	3.49%
2021	Chief Administrative Officer	$288,226.98	$2,828.16	2.13%
2020	Chief Administrative Officer	$282,206.19	$2,900.04	2.21%
2019	Chief Administrative Officer	$288,595.64	$2,818.23	3.51%
2018	Chief Administrative Officer	$278,804.33	$1,515.33	3.35%
2017	Chief Administrative Officer	$269,771.31	$1,169.33	1.46%
2016	Chief Administrative Officer	$265,879.19	$1,057.44	2%
2015	Chief Administrative Officer	$260,669.04	$1,117.25	3.33%
2014	Chief Administrative Officer	$252,258.72	$1,253.25	5.12%
2013	Chief Administrative Officer	$239,961.54	$1,426.30	4.91%
2012	Chief Administrative Officer	$252,353.01	$1,372.37	21.73%
2011	Chief Administrative Officer	$207,309.98	$1,159.08	1.01%
2010	Chief Administrative Officer	$205,227.21	$1,123.92	0.9%
2009	Chief Administrative Officer	$203,392.05	$1,102.35	1.35%
2008	Chief Administrative Officer	$206,174.03	$1,011.33	8.71%
2007	Chief Administrative Officer	$189,657.31	$548.50	25.25%
2005	Chief Administrative Officer	$151,418.49	$396.84	16.46%
2004	GM Corporate Services	$130,018.92	$346.69	24%
2003	GM., Corporate Services	$104,857.06	$280.56	—

Mark Aitken earned $336,830.82 as Chief Administrative Officer at County Of Simcoe in 2025, according to the Ontario Sunshine List. This represents a 10.91% increase over the previous year's reported salary. Mark Aitken has appeared on the Ontario Sunshine List 22 times between 2003 and 2025, with reported earnings peaking at $336,830.82 in 2025. In addition to salary, $1,972.15 in taxable benefits was disclosed for 2025. County Of Simcoe reports under the Municipalities & Services sector of Ontario's public sector salary disclosure.

Top earning Chief Administrative Officers in County Of Simcoe

Name	Salary
Mark Aitken	$336,830.82

Top earning Chief Administrative Officers in Ontario

Name	Salary	Employer
Gary Kent Regional Municipality Of Peel	$581,808.37	Regional Municipality Of Peel
Nathan D Hyde Town Of Caledon	$448,001.25	Town Of Caledon
Marlon Kallideen City Of Brampton	$381,736.99	City Of Brampton
Erin Mahoney Regional Municipality Of York	$375,023.21	Regional Municipality Of York
Elaine Baxter-Trahair Regional Municipality Of Durham	$364,165.43	Regional Municipality Of Durham
Michael Duben Municipality Of Chatham-Kent	$347,276.10	Municipality Of Chatham-Kent
Andrew Farr Regional Municipality Of Halton	$344,877.62	Regional Municipality Of Halton
Andrew Taylor City Of Markham	$343,491.98	City Of Markham
Denis Bourguignon University Of Toronto	$342,072.51	University Of Toronto
Jane Clohecy Town Of Oakville	$342,064.01	Town Of Oakville

Other employees at County Of Simcoe

Name	Position	Salary
Trevor Wilcox General Manager, Corporate Performance	General Manager, Corporate Performance	$257,618.03
Jane Eleanor Sinclair General Manager, Health and Emergency Services	General Manager, Health and Emergency Services	$257,558.03
Robert Elliott General Manager, Engineering, Planning and Environment	General Manager, Engineering, Planning and Environment	$252,060.69
Mina Fayez-Bahgat General Manager, Social and Community Services	General Manager, Social and Community Services	$228,877.13
Robert P Mccullough Director, Solid Waste Management	Director, Solid Waste Management	$210,865.68