St. Clair property taxes & housing data
St. Clair is taxed at 38.9814 mills across 1 school district. That is 11.92 mills above the St. Clair County median and 6.38 mills above the Southeast Michigan median — the 26th lowest of 31 municipalities in the county, and 157 of 236 region-wide.
Rates by school district
| School district | Homestead | Non-homestead | $250,000 | $350,000 | $500,000 |
|---|---|---|---|---|---|
| East China Twp School District | 38.9814 | 56.9814 | $4,873 | $6,822 | $9,745 |
Homestead (PRE) applies to your primary residence. Non-homestead applies to rentals and second homes. Dollar columns are the annual bill at the uncapped taxable value — half the purchase price — at the homestead rate.
How St. Clair compares in St. Clair County
| Municipality | Lowest millage | Annual tax on $350,000 |
|---|---|---|
| Brockway Township | 28.6411 | $5,012 |
| Port Huron Township | 30.9408 | $5,415 |
| Algonac | 37.2823 | $6,524 |
| Marine City | 38.1132 | $6,670 |
| St. Clair | 38.9814 | $6,822 |
| Marysville | 39.9654 | $6,994 |
| Port Huron | 41.3099 | $7,229 |
| Richmond | 41.9639 | $7,344 |
| Memphis | 44.2314 | $7,740 |
← Marine City (lower) · Marysville (higher) →
For sale in St. Clair right now
33 active listings in St. Clair — the 6 newest below. Remember: every one of them uncaps the year after closing, so the bill you should budget is the uncapped one above, not the seller's.
$403,900
137 E Meldrum CIR · St Clair
3 bd · 3 ba · 2,220 sqft
Listing courtesy of Sine & Monaghan Realtors LLC St Clair
$90,000
1600 Oakland Street, Unit A-3 · St Clair
1 bd · 1 ba · 605 sqft
Listing courtesy of Move Realty LLC
$369,000
304 Brown ST · St Clair
5 bd · 2 ba · 1,847 sqft
Listing courtesy of Sine & Monaghan Realtors LLC St Clair
$275,000
1213 Clinton AVE · St Clair
3 bd · 3 ba · 1,960 sqft
Listing courtesy of RE/MAX First
$389,900
1545 Clinton AVE · St Clair
4 bd · 3 ba · 3,930 sqft
Listing courtesy of Sine & Monaghan Realtors LLC St Clair
$174,900
1234 Court ST · St Clair
3 bd · 2 ba · 1,206 sqft
Listing courtesy of KW Platinum
IDX provided courtesy of Realcomp II Ltd. via Match Realty LLC and MiRealSource, Realcomp II Ltd, ©2026 Realcomp II Ltd. Shareholders. The accuracy of all information, regardless of source, is not guaranteed or warranted. All information should be independently verified. Listings refreshed 2026-09-04T09:58-04:00; refreshed at least twice daily.
Compare St. Clair with another community
St. Clair has 11 side-by-side comparisons, 9 of them with a community that shares a school district — same schools, different bill. Dollar columns are the annual homestead bill on a $350,000 home at the uncapped taxable value, and the last column is the difference against St. Clair.
| Comparison | Their lowest millage | Annual tax on $350,000 | vs St. Clair |
|---|---|---|---|
| St. Clair vs Cottrellville Township · same schools | 23.5254 | $4,117 | −$2,705 |
| St. Clair vs Saint Clair Township · same schools | 23.5755 | $4,126 | −$2,696 |
| St. Clair vs Columbus Township · same schools | 23.5871 | $4,128 | −$2,694 |
| St. Clair vs China Township · same schools | 24.0554 | $4,210 | −$2,612 |
| St. Clair vs Casco Township · same schools | 24.5978 | $4,305 | −$2,517 |
| St. Clair vs East China Township · same schools | 27.2762 | $4,773 | −$2,048 |
| St. Clair vs Ira Township · same schools | 27.5526 | $4,822 | −$2,000 |
| St. Clair vs Port Huron | 41.3099 | $7,229 | +$407 |
| St. Clair vs Algonac | 37.2823 | $6,524 | −$297 |
| St. Clair vs Marysville · same schools | 39.9654 | $6,994 | +$172 |
| St. Clair vs Marine City · same schools | 38.1132 | $6,670 | −$152 |
Common questions
What is the property tax rate in St. Clair, Michigan?
St. Clair is taxed at 38.9814 mills for a homestead (principal residence) under the official 2025 Michigan Department of Treasury millage report. On a $350,000 home at the uncapped taxable value that is about $6,822 a year.
Does the tax rate change by address within St. Clair?
No. All of St. Clair sits in East China Twp School District, so the millage is 38.9814 at every address in the municipality. Your bill still changes after you buy, because it is recalculated on the uncapped taxable value rather than the seller's capped one.
How much are property taxes on a $350,000 home in St. Clair?
About $6,822 a year at the homestead rate. Michigan taxes the taxable value, not the sale price, and after a sale that value uncaps to roughly half what you paid — so $350,000 is taxed on about $175,000.
Why is the tax bill on a St. Clair listing lower than what I would pay?
Because the figure on the listing is the seller's. Michigan caps annual taxable-value growth while an owner keeps the property, and that cap is removed the year after it sells. The longer the seller owned it, the further their bill sits below yours.
How does St. Clair compare with the rest of St. Clair County?
It is the 26 lowest of 31 municipalities in St. Clair County and 157 of 236 across the eight-county region — 11.92 mills above the county median.
Is down payment assistance available for homes in St. Clair?
Likely, but verify per program: 100% of the 35 St. Clair sales evaluated by Down Payment Resource over the last 12 months were flagged as potentially matching at least one assistance program. The flag is an indicator, not a promise — compare the programs and check your numbers.
What your St. Clair taxes become after you buy
Michigan taxable value uncaps the year after a sale and resets to roughly half the purchase price. The calculator below is already set to St. Clair — enter a price and the seller's current taxable value.
Uncapping calculator
When a Michigan home changes hands, its taxable value uncaps the following year and resets to roughly half the sale price. Buyers routinely get blindsided by a bill that's thousands higher than the listing showed. Here's your actual number.
What will your tax bill be after closing?
Your taxable value uncaps the year after closing and resets to roughly half the purchase price — so a $350,000 home is taxed on about $175,000, whatever the seller was paying. Enter the price and the current taxable value below.