GlocalWiki

2025 filed rates · Southwest Ontario

London vs St Thomas: property tax compared

London1.68% $8,382 a year on a $500,000 home

St Thomas1.72% $8,610 a year on a $500,000 home

St Thomas is +0.05 pts higher: $228 a year more on a $500,000 home.

Where the two sit among Ontario's 414 municipalities

Each dot is one municipality, placed by its newest filed rate. London is higher than 76%; St Thomas is higher than 78%.

London 1.68%
St Thomas 1.72%
Middle 1.40%10 more, up to 6.85%
London
St Thomas
Middle 1.40%10 more, to 6.85%
  • Lowest fifth
  • Low
  • Middle fifth
  • High
  • Highest fifth
  • London
  • St Thomas

London has the lower property tax rate: 1.68% against St Thomas's 1.72% for 2025, a gap of 0.05 percentage points. On a $500,000 assessment that is $8,382 versus $8,610 a year — a difference of $228.

Side by side

Assessed valueLondonSt ThomasDifference
$300,000$5,029$5,166$137
$500,000$8,382$8,610$228
$750,000$12,573$12,915$342
$1,000,000$16,764$17,220$456

Assessed value, not market price. Ontario assessments still reference 2016 valuations, and the two places may sit at different distances from current market value — which is why a rate gap is not the same as a bill gap for comparable houses.

Where the difference comes from

Neither has a county above it, so neither pays a county levy and the comparison is clean: the whole difference sits in the municipal rate.

PortionLondonSt ThomasOn $500,000
Municipal1.52%1.57%$228
County or regionnonenone$0
Education0.15%0.15%$0
Total1.68%1.72%$228

2019–2025: has the gap widened?

YearLondonSt ThomasGap
20191.34%1.54%+0.20 pts
20201.35%1.55%+0.20 pts
20211.39%1.55%+0.16 pts
20221.42%1.59%+0.17 pts
20231.46%1.62%+0.16 pts
20241.57%1.66%+0.09 pts
20251.68%1.72%+0.05 pts

Which is cheaper, London or St Thomas?

London, on rate. 1.68% against 1.72% means $228 less per year on a $500,000 assessment. Whether it is cheaper for the same house depends on how each place assesses it, which the rate alone does not tell you.

Sources and method

Tax rates
Ontario Financial Information Return (FIR), 22 GPL — Municipal and School Board Taxation. Ministry of Municipal Affairs and Housing, Municipal Act s.294(1). Years 2019, 2020, 2021, 2022, 2023, 2024, 2025; retrieved 2026-10-11. Download the file
Method
Dollar figures are the rate times the assessed value shown. Gaps between two rates are in percentage points. Both figures are as filed with the province for the tax year shown.
Limits
Reference, not tax advice. An individual bill can include area-specific charges that a municipality-wide rate does not capture.