Riley Township property taxes & housing data
Riley Township is taxed at 25.0808–28.4754 mills across 4 school districts. That is 1.98 mills below the St. Clair County median and 7.52 mills below the Southeast Michigan median — the 9th lowest of 31 municipalities in the county, and 52 of 236 region-wide.
Rates by school district
| School district | Homestead | Non-homestead | $250,000 | $350,000 | $500,000 |
|---|---|---|---|---|---|
| Capac Community School District | 25.0808 | 42.2863 | $3,135 | $4,389 | $6,270 |
| Yale Public Schools | 26.1754 | 44.1754 | $3,272 | $4,581 | $6,544 |
| Memphis Community School District | 26.8193 | 44.8193 | $3,352 | $4,693 | $6,705 |
| Armada Area Schools | 28.4754 | 46.4754 | $3,559 | $4,983 | $7,119 |
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 Riley Township compares in St. Clair County
| Municipality | Lowest millage | Annual tax on $350,000 |
|---|---|---|
| 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 |
| Clyde Township | 25.7133 | $4,500 |
← Casco Township (lower) · Clay Township (higher) →
For sale in Riley Township right now
4 active listings in Riley Township — the 4 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.
$250,000
12865 Hough RD · Riley Township
3 bd · 2 ba · 1,374 sqft
Listing courtesy of Realty Executives Home Towne Romeo
$319,000
Masters RDS · Riley Township
3 bd · 2 ba · 1,503 sqft
Listing courtesy of Coldwell Banker Professionals
$499,900
2670 Riley Center Road · Riley Township
4 bd · 3 ba · 2,500 sqft
Listing courtesy of Real Estate Professional Services Inc
$324,900
11172 Dunn RD · Riley Township
2 bd · 1 ba · 900 sqft
Listing courtesy of Nelson Property Management
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 Riley Township with another community
Riley Township has 24 side-by-side comparisons, 21 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 Riley Township.
| Comparison | Their lowest millage | Annual tax on $350,000 | vs Riley Township |
|---|---|---|---|
| Riley Township vs Yale · same schools | 46.6898 | $8,171 | +$3,782 |
| Riley Township vs Memphis · same schools | 44.2314 | $7,740 | +$3,351 |
| Riley Township vs Memphis · same schools | 40.2848 | $7,050 | +$2,661 |
| Riley Township vs Brockway Township · same schools | 28.6411 | $5,012 | +$623 |
| Riley Township vs Bruce Township · same schools | 21.6945 | $3,797 | −$593 |
| Riley Township vs Imlay Township · same schools | 21.7820 | $3,812 | −$577 |
| Riley Township vs Kenockee Township · same schools | 27.6076 | $4,831 | +$442 |
| Riley Township vs Mussey Township · same schools | 27.1917 | $4,759 | +$369 |
| Riley Township vs Emmett Township · same schools | 27.0655 | $4,736 | +$347 |
| Riley Township vs Armada Township · same schools | 27.0221 | $4,729 | +$340 |
| Riley Township vs Richmond Township · same schools | 23.2587 | $4,070 | −$319 |
| Riley Township vs Columbus Township · same schools | 23.5871 | $4,128 | −$261 |
| Riley Township vs Lenox Township · same schools | 26.3995 | $4,620 | +$231 |
| Riley Township vs Kimball Township · same schools | 26.3624 | $4,613 | +$224 |
| Riley Township vs Berlin Township · same schools | 23.8033 | $4,166 | −$224 |
| Riley Township vs Greenwood Township · same schools | 24.0059 | $4,201 | −$188 |
| Riley Township vs Ray Township · same schools | 25.9689 | $4,545 | +$155 |
| Riley Township vs Grant Township · same schools | 25.7171 | $4,500 | +$111 |
| Riley Township vs Clyde Township · same schools | 25.7133 | $4,500 | +$111 |
| Riley Township vs Wales Township · same schools | 25.7073 | $4,499 | +$110 |
| Riley Township vs Burtchville Township | 24.5387 | $4,294 | −$95 |
| Riley Township vs Casco Township | 24.5978 | $4,305 | −$85 |
| Riley Township vs Lynn Township · same schools | 25.2617 | $4,421 | +$32 |
| Riley Township vs Clay Township | 25.2550 | $4,420 | +$30 |
What it's like to own in Riley Twp
Beyond the tax rate, three things shape what owning in Riley 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
1979
average year built · 1,771 sqft average across 1,043 single-family homes
SEMCOG Buildings_2024
Radon
5.5 pCi/L
average across 25 home tests · 31% above the EPA 4 pCi/L action level — elevated. ZIP 48041.
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 Riley Township, Michigan?
Riley Township is taxed at 25.0808–28.4754 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 $4,389 a year.
Does the tax rate change by address within Riley Township?
Yes. Riley Township spans 4 school districts and the rate runs from 25.0808 to 28.4754 mills depending on the district your address falls in — a difference of $594 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 Riley Township?
About $4,389 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 Riley 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 Riley Township compare with the rest of St. Clair County?
It is the 9 lowest of 31 municipalities in St. Clair County and 52 of 236 across the eight-county region — 1.98 mills below the county median.
What your Riley 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 Riley 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.