Cottrellville Township is taxed at 23.5254 mills across 1 school district. That is 3.54 mills below the St. Clair County median and 9.08 mills below the Southeast Michigan median — the 1st lowest of 31 municipalities in the county, and 30 of 236 region-wide.
| School district | Homestead | Non-homestead | $250,000 | $350,000 | $500,000 |
|---|---|---|---|---|---|
| East China Twp School District | 23.5254 | 41.5254 | $2,941 | $4,117 | $5,881 |
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.
| Municipality | Lowest millage | Annual tax on $350,000 |
|---|---|---|
| Cottrellville Township | 23.5254 | $4,117 |
| Saint Clair Township | 23.5755 | $4,126 |
| Columbus Township | 23.5871 | $4,128 |
| Berlin Township | 23.8033 | $4,166 |
| Greenwood Township | 24.0059 | $4,201 |
Saint Clair Township (higher) →
1967
average year built · 1,728 sqft average across 1,198 single-family homes
SEMCOG Buildings_2024
1.44 pCi/L
average across 9 home tests · 0% above the EPA 4 pCi/L action level — low. ZIP 48039.
MDHHS indoor radon test results by ZIP
Lead is measured at the water system, not the house — it cannot tell you whether a specific property has a lead service line. Radon is a ZIP-level test distribution, not a prediction for any one home; the EPA recommends testing every home regardless. Screening information only.
Cottrellville Township is taxed at 23.5254 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 $4,117 a year.
No. All of Cottrellville Township sits in East China Twp School District, so the millage is 23.5254 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.
About $4,117 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.
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.
It is the 1 lowest of 31 municipalities in St. Clair County and 30 of 236 across the eight-county region — 3.54 mills below the county median.
Michigan taxable value uncaps the year after a sale and resets to roughly half the purchase price. The calculator below is already set to Cottrellville Township — enter a price and the seller's current taxable value.
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.
Enter the purchase price and the property's current taxable value (it's on the listing, the assessor's site, or we'll pull it for you).