Grant Township property taxes & housing data
Grant Township is taxed at 25.7171–30.1899 mills across 3 school districts. That is 1.35 mills below the St. Clair County median and 6.89 mills below the Southeast Michigan median — the 14th lowest of 31 municipalities in the county, and 64 of 236 region-wide.
Rates by school district
| School district | Homestead | Non-homestead | $250,000 | $350,000 | $500,000 |
|---|---|---|---|---|---|
| Croswell-Lexington Community Schools | 25.7171 | 43.7171 | $3,215 | $4,500 | $6,429 |
| Port Huron Area Schools | 28.8091 | 46.8091 | $3,601 | $5,042 | $7,202 |
| Yale Public Schools | 30.1899 | 48.1899 | $3,774 | $5,283 | $7,547 |
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 Grant Township compares in St. Clair County
| Municipality | Lowest millage | Annual tax on $350,000 |
|---|---|---|
| Clay Township | 25.2550 | $4,420 |
| Lynn Township | 25.2617 | $4,421 |
| Wales Township | 25.7073 | $4,499 |
| Clyde Township | 25.7133 | $4,500 |
| Grant Township | 25.7171 | $4,500 |
| Kimball Township | 26.3624 | $4,613 |
| Emmett Township | 27.0655 | $4,736 |
| Mussey Township | 27.1917 | $4,759 |
| East China Township | 27.2762 | $4,773 |
← Clyde Township (lower) · Kimball Township (higher) →
For sale in Grant Township right now
1 active listings in Grant Township — the 1 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.
Listing courtesy of Epique RealtyIDX provided courtesy of Realcomp II Ltd. via Match Realty LLC and 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 Grant Township with another community
Grant Township has 14 side-by-side comparisons, 14 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 Grant Township.
| Comparison | Their lowest millage | Annual tax on $350,000 | vs Grant Township |
|---|---|---|---|
| Grant Township vs Yale · same schools | 46.6898 | $8,171 | +$3,670 |
| Grant Township vs Port Huron · same schools | 41.3099 | $7,229 | +$2,729 |
| Grant Township vs Port Huron Township · same schools | 30.9408 | $5,415 | +$914 |
| Grant Township vs Brockway Township · same schools | 28.6411 | $5,012 | +$512 |
| Grant Township vs Fort Gratiot Township · same schools | 28.1448 | $4,925 | +$425 |
| Grant Township vs Kenockee Township · same schools | 27.6076 | $4,831 | +$331 |
| Grant Township vs Greenwood Township · same schools | 24.0059 | $4,201 | −$299 |
| Grant Township vs Emmett Township · same schools | 27.0655 | $4,736 | +$236 |
| Grant Township vs Burtchville Township · same schools | 24.5387 | $4,294 | −$206 |
| Grant Township vs Kimball Township · same schools | 26.3624 | $4,613 | +$113 |
| Grant Township vs Riley Township · same schools | 25.0808 | $4,389 | −$111 |
| Grant Township vs Lynn Township · same schools | 25.2617 | $4,421 | −$80 |
| Grant Township vs Wales Township · same schools | 25.7073 | $4,499 | −$2 |
| Grant Township vs Clyde Township · same schools | 25.7133 | $4,500 | −$1 |
What it's like to own in Grant Twp
Beyond the tax rate, three things shape what owning in Grant 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
1980
average year built · 1,843 sqft average across 596 single-family homes
SEMCOG Buildings_2024
Radon
4.5 pCi/L
average across 11 home tests · 25% above the EPA 4 pCi/L action level — elevated. ZIP 48032.
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 Grant Township, Michigan?
Grant Township is taxed at 25.7171–30.1899 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 $4,500 a year.
Does the tax rate change by address within Grant Township?
Yes. Grant Township spans 3 school districts and the rate runs from 25.7171 to 30.1899 mills depending on the district your address falls in — a difference of $783 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 Grant Township?
About $4,500 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 Grant 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 Grant Township compare with the rest of St. Clair County?
It is the 14 lowest of 31 municipalities in St. Clair County and 64 of 236 across the eight-county region — 1.35 mills below the county median.
What your Grant 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 Grant 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.