Cottrellville Township property taxes & housing data
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.
Rates by school district
| 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.
How Cottrellville Township compares in St. Clair County
| 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) →
For sale in Cottrellville Township right now
10 active listings in Cottrellville Township — 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.
$457,000
6700 Starville Road · Cottrellville Township
3 bd · 3 ba · 4,258 sqft
Listing courtesy of REALTEAM Real Estate
$419,000
5765 Roberts RD · Cottrellville Township
3 bd · 2 ba · 1,700 sqft
Listing courtesy of Realty Executives Home Towne Chesterfield
$435,000
7099 Arnold RD · Cottrellville Township
4 bd · 3 ba · 4,700 sqft
Listing courtesy of Real Estate One Clinton
$189,000
7882 Morrow RD · Cottrellville Township
3 bd · 1 ba · 1,884 sqft
Listing courtesy of KW Platinum
$949,750
8319 River RD · Cottrellville Township
3 bd · 4 ba · 3,350 sqft
Listing courtesy of Real Estate One Westrick-Marine City
$429,000
7990 Marsh RD · Cottrellville Township
3 bd · 4 ba · 2,396 sqft
Listing courtesy of Berkshire Hathaway HomeServices Kee Realty NB
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 Cottrellville Township with another community
Cottrellville Township has 9 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 Cottrellville Township.
| Comparison | Their lowest millage | Annual tax on $350,000 | vs Cottrellville Township |
|---|---|---|---|
| Cottrellville Township vs Marysville · same schools | 39.9654 | $6,994 | +$2,877 |
| Cottrellville Township vs St. Clair · same schools | 38.9814 | $6,822 | +$2,705 |
| Cottrellville Township vs Marine City · same schools | 38.1132 | $6,670 | +$2,553 |
| Cottrellville Township vs Ira Township · same schools | 27.5526 | $4,822 | +$705 |
| Cottrellville Township vs East China Township · same schools | 27.2762 | $4,773 | +$656 |
| Cottrellville Township vs Casco Township · same schools | 24.5978 | $4,305 | +$188 |
| Cottrellville Township vs China Township · same schools | 24.0554 | $4,210 | +$93 |
| Cottrellville Township vs Columbus Township · same schools | 23.5871 | $4,128 | +$11 |
| Cottrellville Township vs Saint Clair Township · same schools | 23.5755 | $4,126 | +$9 |
What it's like to own in Cottrellville Twp
Beyond the tax rate, three things shape what owning in Cottrellville Twp actually costs: the age of the homes, what the water utility reports at the tap, and what local air testing has turned up. Each figure below carries the date of the survey it came from.
Housing stock
1967
average year built · 1,728 sqft average across 1,198 single-family homes
SEMCOG Buildings_2024
Radon
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.
Common questions
What is the property tax rate in Cottrellville Township, Michigan?
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.
Does the tax rate change by address within Cottrellville Township?
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.
How much are property taxes on a $350,000 home in Cottrellville Township?
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.
Why is the tax bill on a Cottrellville Township 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 Cottrellville Township compare with the rest of St. Clair County?
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.
What your Cottrellville Township 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 Cottrellville Township — 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.