Casco Township property taxes & housing data
Casco Township is taxed at 24.5978–31.7024 mills across 3 school districts. That is 2.47 mills below the St. Clair County median and 8.01 mills below the Southeast Michigan median — the 8th lowest of 31 municipalities in the county, and 48 of 236 region-wide.
Rates by school district
| School district | Homestead | Non-homestead | $250,000 | $350,000 | $500,000 |
|---|---|---|---|---|---|
| East China Twp School District | 24.5978 | 42.5978 | $3,075 | $4,305 | $6,149 |
| Richmond Community School District | 28.2024 | 46.1268 | $3,525 | $4,935 | $7,051 |
| Anchor Bay School District | 31.7024 | 49.7024 | $3,963 | $5,548 | $7,926 |
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 Casco Township compares in St. Clair County
| Municipality | Lowest millage | Annual tax on $350,000 |
|---|---|---|
| Berlin Township | 23.8033 | $4,166 |
| Greenwood Township | 24.0059 | $4,201 |
| China Township | 24.0554 | $4,210 |
| Burtchville Township | 24.5387 | $4,294 |
| Casco Township | 24.5978 | $4,305 |
| Riley Township | 25.0808 | $4,389 |
| Clay Township | 25.2550 | $4,420 |
| Lynn Township | 25.2617 | $4,421 |
| Wales Township | 25.7073 | $4,499 |
← Burtchville Township (lower) · Riley Township (higher) →
For sale in Casco Township right now
3 active listings in Casco Township — the 3 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.
$549,900
10321 Saint Clair HWY · Casco Township
6 bd · 6 ba · 3,644 sqft
Listing courtesy of Metro North Properties Inc
$640,000
4425 Bethuy Road · Casco Township
3 bd · 3 ba · 2,408 sqft
Listing courtesy of Select Real Estate Professionals
$280,000
10635 Gratiot AVE · Casco Township
3 bd · 2 ba · 1,344 sqft
Listing courtesy of Realty Executives Home Towne Chesterfield
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 Casco Township with another community
Casco Township has 18 side-by-side comparisons, 15 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 Casco Township.
| Comparison | Their lowest millage | Annual tax on $350,000 | vs Casco Township |
|---|---|---|---|
| Casco Township vs Richmond · same schools | 41.9639 | $7,344 | +$3,039 |
| Casco Township vs New Baltimore · same schools | 40.8182 | $7,143 | +$2,839 |
| Casco Township vs Marysville · same schools | 39.9654 | $6,994 | +$2,689 |
| Casco Township vs Richmond · same schools | 39.8993 | $6,982 | +$2,678 |
| Casco Township vs St. Clair · same schools | 38.9814 | $6,822 | +$2,517 |
| Casco Township vs Marine City · same schools | 38.1132 | $6,670 | +$2,365 |
| Casco Township vs Ira Township · same schools | 27.5526 | $4,822 | +$517 |
| Casco Township vs East China Township · same schools | 27.2762 | $4,773 | +$469 |
| Casco Township vs Lenox Township · same schools | 26.3995 | $4,620 | +$315 |
| Casco Township vs Chesterfield Township · same schools | 26.2405 | $4,592 | +$287 |
| Casco Township vs Richmond Township · same schools | 23.2587 | $4,070 | −$234 |
| Casco Township vs Cottrellville Township · same schools | 23.5254 | $4,117 | −$188 |
| Casco Township vs Saint Clair Township · same schools | 23.5755 | $4,126 | −$179 |
| Casco Township vs Columbus Township · same schools | 23.5871 | $4,128 | −$177 |
| Casco Township vs Clay Township | 25.2550 | $4,420 | +$115 |
| Casco Township vs China Township · same schools | 24.0554 | $4,210 | −$95 |
| Casco Township vs Riley Township | 25.0808 | $4,389 | +$85 |
| Casco Township vs Burtchville Township | 24.5387 | $4,294 | −$10 |
What it's like to own in Casco Twp
Beyond the tax rate, three things shape what owning in Casco 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
1969
average year built · 1,831 sqft average across 1,310 single-family homes
SEMCOG Buildings_2024
Radon
2.4 pCi/L
average across 11 home tests · 14% above the EPA 4 pCi/L action level — elevated. ZIP 48064.
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 Casco Township, Michigan?
Casco Township is taxed at 24.5978–31.7024 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 $4,305 a year.
Does the tax rate change by address within Casco Township?
Yes. Casco Township spans 3 school districts and the rate runs from 24.5978 to 31.7024 mills depending on the district your address falls in — a difference of $1,243 a year on a $350,000 home. The district table above lists every rate.
How much are property taxes on a $350,000 home in Casco Township?
About $4,305 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 Casco 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 Casco Township compare with the rest of St. Clair County?
It is the 8 lowest of 31 municipalities in St. Clair County and 48 of 236 across the eight-county region — 2.47 mills below the county median.
What your Casco 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 Casco 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.