Partner
Mortgage rates for St. Marys homeowners
Mill rates are one line on the St. Marys housing bill. Compare current Canadian mortgage options from multiple lenders.
St. Marys property taxes 2026
Ontario · Municipal mill rates · provincial open data and municipal tax bylaws
By OpenStats · Built from official Canadian sources
Atlas seed row (verify live source)11.40millsAbove average
~$5,130/yr on $450,000 assessed home
016.30National avg9.94ON avg14.09
Residential mill rate
11.40
mills · $5,130/yr municipal on $450K
Est. annual tax
$6,210
Municipal + education on $450,000 home
Vs provincial avg
-19.1%
Ontario avg: 14.09 mills
Reading this page
St. Marys's 2026 residential mill rate is 11.4000 mills, plus an education levy of 2.4000 mills. That combination works out to roughly $6,210 per year on a $450,000 assessed home.
The commercial mill rate is 15.9600 mills, and the residential rate is 19% below the Ontario average of 14.09 mills.
How to read this
One mill equals $1 of tax per $1,000 of assessed value. Rates are compiled from provincial open schedules and municipal tax bylaws, then normalized to mills where the source allows. Assessment systems differ (BC Assessment, Ontario MPAC phase-in, Alberta market value, Nova Scotia capped assessment), so cross-province rate rankings are not dollar rankings until bases align.
Start with the residential mill rate and the sample bill on a median assessed home, then ask whether education or regional levies sit on top. Municipal rate is the piece council sets; your notice may show a higher total. Compare cities on a similar assessed value, and keep class in mind (residential vs commercial or multi-residential).
Use the calculator for a rough personal estimate, then confirm the current tax bylaw and your assessment notice before budgeting or a purchase decision. Method detail: methodology.
Figure 1 · Assessment math
Mills to dollars on a median home
St. Marys's residential mill rate of 11.40 mills on a $450,000 assessed home yields roughly $5,130 per year in municipal tax before education levies.
Rate vs provincial average
How St. Marys compares to other Ontario municipalities
St. Marys11.4 mills
Ontario average14.091372549019612 mills
St. Marys is 19.1% below the provincial average of 14.09 mills.
Tax estimate on median home
Based on a $450,000 assessed value
Annual breakdown
- Municipal portion
- $5,130
- Education levy
- $1,080
- Commercial mill rate
- 15.96 mills
- Estimated total
- $6,210/yr
We may earn a commission when you use partner links on this page.
Source · Statistics Canada 46-10-0026-01 (seed). Last updated 2026. Refreshed on the site's automated schedule.